The average of first 20 odd natural numbers is:
- ((a))
20.5
- ((b))
21
- ((c))
19.5
- ((d))
20
Show Answer
20.5
100 questions · 90 minutes · with answers · free
The average of first 20 odd natural numbers is:
20.5
21
19.5
20
20.5
A, B and C invest sums in the ratio 64 : 22 : 34. If they earned a total profit of ₹2,260 at the end of year, then what is the difference between the shares of B and C?
₹248
₹260
₹257
₹226
₹248
The value of is
The average price of three items of furniture is ₹17,265. If their prices are in the ratio 3 : 5 : 7, the price of the cheapest item (in ₹) is:
5,755
3,453
8,057
10,359
5,755
The distance of a point lying outside a circle from the centre is 10 cm. If the diameter of the circle is 12 cm, then the length of the tangent drawn from the outside point to the circle is:
8 cm
7.5 cm
10 cm
6 cm
8 cm
The sum of the present ages of A, B and C is 113 years. 19 years ago from now, the ratio of their ages was 8 : 4 : 2. What is the present age of C (in years)?
25
24
27
29
25
Evaluate: [(4 × 2) − (14 ÷ 2)] + 10
12
10
13
11
12
The cost of flooring the surface of a rectangular hall at the rate of ₹1,200 per square metre is ₹9,21,600. If the breadth of the hall is three-fourth of its length, then the difference between the length and the breadth is:
one-fourth of its length
five less than half of its length
three more than half of its breadth
one-fourth of its breadth
one-fourth of its length
During a sale 50% of the goods are sold at 13% profit, 30% of the remaining goods are sold at 47% profit and the still remaining goods are sold at a loss of 23%. If there is an overall profit of x%, then what is the value of x?
7
6
5.5
4.5
7
During a sale, 60% of the goods are sold at 22% profit, 40% of the remaining goods are sold at a 27% profit and the rest are sold at a 23% loss. If there is an overall profit of x%, then what is the value of x?
12%
7.5%
16%
21.5%
12%
If the mean of the following data is 37, then the value of X is:
| xi | 20 | 30 | 40 | 85 |
|---|---|---|---|---|
| fi | 19 | X | 13 | 24 |
106
125
107
124
106
The HCF and the LCM of two numbers are 2 and 156, respectively. If one of the numbers is 78, find the other one.
55
4
45
60
55
Simplify:
A and B can do a piece of work in 15 days. B and C can do the same work in 20 days. If A is twice as good a workman as C, then in what time (in days) can B alone do the same work?
40
25
30
10
40
Simplify
Wheat worth ₹150 per kg and ₹124 per kg are mixed with a third variety of wheat in the ratio 2 : 2 : 3. If the mixture is worth ₹161 per kg, what is the price (in ₹) per kg of the third variety of wheat?
227
181
193
206
227
The initial price of a car was ₹75,00,000. This price is decreased by 25%. Find the final price of the car.
₹53,25,000
₹56,75,000
₹50,25,000
₹56,25,000
₹53,25,000
A shopkeeper first increases the price of an item by 25% and then reduces the increased price by 20%. What is the overall percentage change in the original price of the item?
3% decrease
Neither increase nor decrease
5% increase
2% increase
3% decrease
Three partners invested in a business in the ratio 6:9:8. They invested their capitals for 12 months, 10 months and 3 months, respectively. What was the ratio of their profits?
11:15:4
12:15:4
10:15:4
0.635462962962963
11:15:4
On a certain sum, the simple interest at the end of years becomes one-fourth of that sum. Find the rate of interest per annum.
4%
2%
5%
6%
4%
Solve the following system of equations and find the value of u × w + v.
3w + 5u - 2v = 8
u - 2v - 3w = - 6
v - 7u + 2w = 11
-5
0
6
-2
-5
A trader gains 76% by selling an article after two successive discounts of 20% and 21% on its marked price. If the cost price of the article is increased by 15%, then what single approximate discount per cent should he now give on the same marked price to get the same profit percentage as earlier?
30.9%
20%
31%
27.3%
30.9%
The expenditure of Sudha is 100% more than her savings. If her expenditure decreases by 7% and savings increase by 38%, then by what percentage will her income increase?
11%
7%
8%
5%
11%
Kanchan bought 51 books for ₹1,150 from one shop and 48 books for ₹925 from another. What is the average price (in ₹, rounded off to two decimal places) did he pay per book ?
23.96
20.96
22.96
21.96
23.96
A hollow spherical shell is made of a metal of density 27 g/cm3. Its internal and external radius are 15 cm and 16 cm, respectively. What is the weight (in kg) of the shell?
(Use π = 22/7, Density = Mass / Volume )
78.576
83.33
81.576
82.97
78.576
A man sold an article for ₹324 by first giving a d% discount on its marked price, and then another discount having the same nominal value (in ₹). If the marked price of the article is ₹1,080, then what will be the value of d?
33
35
39
38
33
The population of a city increases at the rate of 3% annually. The present population of the city is 2,54,616. Find the population of the city two years ago.
2,40,000
2,95,000
2,58,000
2,08,000
2,40,000
Two trains are moving in opposite directions at speeds of 90 km/hr and 50 km/hr. The length of one train is 250 m. The time taken by them to cross each other is 25 seconds. The length (in m) of the other train, correct to 2 decimal places, is:
723.21
722.22
721.39
721.85
723.21
A manufacturer fixes his selling price at 60% over the cost of production. If the cost of production goes up by 44%, and the manufacturer raises his selling price by 35%, find the new profit percentage.
49%
53%
50%
52%
49%
Two trains run in the same direction at the speed of 90 km/hr and 72 km/hr, respectively. What is their relative speed?
57 km/hr
18 km/hr
162 km/hr
98 km/hr
57 km/hr
Which leader, popularly known as Mahamana, was born on 25th December 1861 in the Allahabad district of Uttar Pradesh?
Madan Mohan Malaviya
Lala Lajpat Rai
Chittaranjan Das
Ram Prasad Bismil
Madan Mohan Malaviya
The _________ introduced a new Part IXA in the Constitution, which deals with Municipalities, covering Articles 243P to 243ZG.
75th Constitutional Amendment Act
74th Constitutional Amendment Act
93rd Constitutional Amendment Act
73rd Constitutional Amendment Act
75th Constitutional Amendment Act
As per the Economic Survey 2024-25, which of the following is NOT a key focus area for the development of the toy sector in India?
Development of clusters
Promoting toy imports
Skills development
Creating a sustainable manufacturing ecosystem
Development of clusters
Which of the following Articles of the Constitution of India provides for the incorporation, regulation and winding up of co-operative societies?
Article 248(1)
Article 241(1)
Article 243I
Article 243ZI
Article 248(1)
Who introduced the Tribhuvan Sahkari University Bill, 2025, in the Lok Sabha?
Nirmala Sitharaman
Amit Shah
Krishan Pal Gurjar
Dharmendra Pradhan
Nirmala Sitharaman
Which of the following gases is considered the primary contributor to the greenhouse effect?
Oxygen
Argon
Nitrogen
Carbon dioxide
Oxygen
Which revolt started earlier than schedule due to a sepoy named Mangal Pandey who hit and wounded a British sergeant?
Revolt of 1857
Vellore Mutiny
Paika Rebellion
Vizagapatam Mutiny
Revolt of 1857
For which of the following reasons are women, carrying out tasks such as cooking and fetching water, NOT always categorised as workers?
Because they work primarily in urban areas
Because they do not participate in farm labour
Because they work only part-time
Because they are not paid wages in cash or grains and sometimes not paid at all
Because they work primarily in urban areas
Archaeological evidence of which classical dance form of 2nd century BC is found in the caves of Udayagiri and Khandagiri?
Bharatanatyam
Mohiniyattam
Odissi
Kathakali
Bharatanatyam
The Maha Kumbh Mela, 2025, in Prayagraj began on 13 January 2025. When did it conclude?
15 March 2025
15 February 2025
31 January 2025
26 February 2025
15 March 2025
Which type of soil is best for growing rice?
Sandy soil
Alluvial soil
Black soil
Rocky soil
Sandy soil
The early Harappan site of Kalibangan, where a ploughed field with furrow marks has been found, is located in which state?
Haryana
Gujarat
Madhya Pradesh
Rajasthan
Haryana
Which factor has the greatest influence on the climate of a region?
The latitude and altitude of the region
The type of vegetation in the region
The population density of the region
The longitude of the region
The latitude and altitude of the region
Which of the following is correct regarding Article 41 of the Indian Constitution?
Right to work, to education and to public assistance in certain cases
Organisation of agriculture and animal husbandry
Provision for free and compulsory education for children
Organisation of Village Panchayat
Right to work, to education and to public assistance in certain cases
The New Economic Policy has allowed the Foreign Direct Investment up to ______% of foreign equity in high technology and high priority industries.
51
50
52
49
51
Consider the statements about neutralisation reactions given below.
(I) When a strong acid reacts with a strong base, the reaction always produces a salt and water, resulting in a solution with a pH of 7.
(II) When a weak acid reacts with a strong base, the reaction is still called a neutralisation reaction, but the resulting solution is not neutral (pH ≠ 7).
Which of the given statements is/are correct?
Both (I) and (II)
Only (I)
Only (II)
Neither (I) nor (II)
Both (I) and (II)
An object is moving in a circular path at a constant speed. What can be said about its acceleration?
The object is not accelerating because its speed is constant.
The object is accelerating because its speed is increasing.
The object is not accelerating because it moves in a fixed path.
The object is accelerating because its velocity is changing direction.
The object is not accelerating because its speed is constant.
Meiosis consists of ______ successive cell division(s).
two
one
three
four
two
Which of the following is correctly matched regarding the fruit and seed formation?
Seed - Ripened sepa
Seed - Ripened stigma
Fruit - Ripened petal
Fruit - Ripened ovary
Seed - Ripened sepa
In which year did Niels Bohr receive the Nobel Prize for his work on the structure of the atom?
1932
1922
1916
1927
1932
Which of the following types of pressures is required for the transportation of food from phloem to tissues?
Low pressure
Osmotic pressure
Partial pressure
No pressure
Low pressure
Which of the following is a non-living component present in phloem?
Phloem parenchyma
Phloem fibres
Companion cells
Sieve tube
Phloem parenchyma
For the case of a curved mirror, the pole, centre of curvature and the principal focus are connected by the:
lens axis
principal axis
radius of curvature
mirror axis
lens axis
A series of organisms feeding on one another at various biotic levels forms:
a food chain
an ecosystem
biological magnification
decomposition
a food chain
A rheostat is a _____________.
variable ammeter
variable resistance
variable voltmeter
variable galvanometer
variable ammeter
Methane is widely used as a fuel and is a major component of:
bio-gas
kerosene
liquefied petroleum gas
diesel
bio-gas
Which of the following options correctly classifies the cyclic carbon compounds C6H6 and C6H12 as saturated or unsaturated?
Both are unsaturated
Saturated − C6H12 ; Unsaturated − C6H6
Saturated − C6H6 ; Unsaturated − C6H12
Both are saturated
Both are unsaturated
A bus sets for a journey and comes back after 2 days covering 4400 km. Its average velocity is _____.
2200 m/s
0 m/s
100 m/s
2200 km/day
2200 m/s
An electrical circuit consists of a series combination of three resistors R1, R2 and R3 (where R1, R2 and R3 are not equal). Which of the following statements is correct for this circuit?
Potential difference across all three resistors is the same
The equivalent resistance is equal to 1/R1 + 1/R2 + 1/R3
The current through all the three resistors is the same.
The current through each resistor is different.
Potential difference across all three resistors is the same
Which of the following statements is/are true for bleaching powder?
i. Bleaching powder is represented as CaOCl2 .
ii. Bleaching powder is used to make drinking water free from germs.
Both i and ii
Neither i nor ii
Only ii
Only i
Both i and ii
If ‘X’ stands for ‘−’, ‘Y’ stands for ‘+’, ‘Z’ stands for ‘÷’, and ‘W’ stands for ‘×’, what will come in place of the question mark (?) in the following equation?
20 W 2 Z 5 Y 6 X 3 = ?
12
15
13
11
12
Seven boxes, P, S, J, L, O, R and V, are kept one over the other but not necessarily in the same order. Only O is kept above V. Only J is kept between V and L. Only R is kept below P. How many boxes are kept between S and R?
Three
Two
One
Four
Three
Based on the English alphabetical order, three of the following four letter-clusters are alike in a certain way and thus form a group. Which letter-cluster DOES NOT belong to that group?
(Note: The odd one out is not based on the number of consonants/vowels or their position in the letter-cluster.)
TVP
RTN
PRK
MOI
TVP
Each vowel in the word ABSOLUTE is changed to the letter following it in the English alphabetical order and each consonant is changed to the letter preceding it in the English alphabetical order. Which of the following letters will be fourth from the left in the new group of letters thus formed?
Q
M
B
P
Q
Rekha starts from point A and drives 10 km towards west and then takes a right turn and drives for 3 km. She then takes a right turn and drives for 7 km. She then takes a left turn and drives for 8 km and finally takes a right turn and drives for 3 km to reach point X. How far (shortest distance) and towards which direction should she drive in order to reach point A again? (All turns are 90° turns only unless specified.)
7 km towards east
11 km towards north
11 km towards south
8 km towards west
7 km towards east
Based on the English alphabetical order, three of the following four letter-cluster pairs are alike in a certain way and thus form a group. Which letter-cluster pair DOES NOT belong to that group? (Note: The odd one out is not based on the number of consonants/vowels or their position in the letter-cluster.)
PS-UN
RU-WP
LO-QI
NQ-SL
PS-UN
If B denotes '÷', C denotes '×', D denotes '+' and E denotes '−', then which of the following statements is true?
42 B 6 C 5 D 5 E 10 = 4/5
12 B 2 D 5 C 8 E 6 = 4/2
40 E 5 C 4 B 2 D 10 = 4 × 10
15 D 16 B 4 C 8 E 2 = 10 × 2
42 B 6 C 5 D 5 E 10 = 4/5
Refer to the given letter series and answer the question that follows. Counting to be done from left to right only.
(Left) T P O W Z E E I X F V U K N U P O L O E E Q (Right)
How many such consonants are there each of which is immediately preceded by a consonant and also immediately followed by a consonant?
One
Five
Zero
Two
One
In a certain code language,
‘A + B’ means ‘A is the sister of B’,
‘A @ B’ means ‘A is the brother of B’,
‘A # B’ means ‘A is the wife of B’ and
‘A ÷ B’ means ‘A is the father of B’.
How is M related to K if ‘M @ O # N ÷ G + K’?
Father
Mother's brother
Mother's father
Brother
Father
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusion(s) logically follow(s) from the statements.
Statements:
Some chairs are tables.
All tables are birds.
Conclusions:
(I) Some chairs are birds.
(II) All birds are tables.
Both conclusions (I) and (II) follow.
Neither conclusion (I) nor (II) follows.
Only conclusion (I) follows.
Only conclusion (II) follows.
Both conclusions (I) and (II) follow.
What should come in place of the question mark (?) in the given series?
721 720 711 686 637 ?
558
560
556
554
558
Each letter in the word PRINCE is changed to the letter immediately preceding it in the English alphabetical order and then all the letters in the cluster thus formed are arranged in the English alphabetical order. Which of the following letters will be third from the right in the new group of letters thus formed?
B
M
D
O
B
Which of the given letter-clusters should replace # and % so that the pattern and relationship followed between the letter-cluster pair on the left side of :: is the same as that on the right side of ::?
Select the number from among the given options that can replace the question mark (?) in the given series.
17 25 33 41 49 57 ?
65
68
57
60
65
In a certain code language,
A + B means ‘A is the daughter of B’,
A – B means ‘A is the brother of B’,
A x B means ‘A is the wife of B’, and
A ÷ B means ‘ A is the father of B’.
Based on the above, how is E related to K if ‘E + F x G – H ÷ K’?
Father’s brother’s wife
Mother’s brother’s daughter
Mother’s brother’s wife
Father’s brother’s daughter
Father’s brother’s wife
If 1 is added to each odd digit and 2 is subtracted from each even digit in the number 7134748, what will be the difference between the highest and the lowest digits in the new number thus formed?
4
6
2
7
4
Five boxes R, S, T, U and V are kept one over the other but not necessarily in the same order. R is kept third from the bottom. Only two boxes are kept between V and U. S is kept immediately below U. V is kept at the top-most position. Which box is kept second from the top?
S
V
U
T
S
Read the given statement(s) and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statement(s).
Statements:
All cats are dogs.
All dogs are lions.
Conclusions:
(I) All lions are dogs.
(II) All dogs are cats.
Only I follows
Neither I nor II follows
Only II follows
Both I and II follow
Only I follows
Refer to the following number series and answer the question that follows. Counting to be done from left to right only.
(Left) 1 7 4 9 2 6 3 8 5 2 4 9 7 1 6 3 8 4 2 7 5 6 1 8 9 (Right)
How many such even digits are there each of which is immediately preceded by an even digit and also immediately followed by an odd digit?
Two
Three
Four
Five
Two
Seven people, L, M, N, O, P, Q and R are sitting in a row, facing north. Only three people sit between L and N. R sits to the immediate left of N. No one sits to the right of O. Only two people sit between O and R. M sits to the immediate right of P. How many people sit between Q and M?
Four
Three
One
Two
Four
In a certain code language, ‘EACH’ is coded as ‘3015’ and ‘ARCH’ is coded as ‘0138’. What is the code for ‘R’ in the given code language?
8
1
5
0
8
Seven people, A, B, E, F, G, Q and R, are sitting in a row, facing north. Only two people sit to the left of G. Only three people sit between G and Q. Only one person sits between Q and E. A sits to the immediate left of F. B is not an immediate neighbour of Q. How many people sit to the right of R?
1
4
2
3
1
Refer to the given letter series and answer the question that follows. Counting to be done from left to right only.
(Left) Y M C K R X Z S P O L I H J F V E N U B W G Q (Right)
How many such consonants are there each of which is immediately preceded by a vowel and also immediately followed by a vowel?
One
Three
Two
None
One
The position(s) of how many letters will remain unchanged if each of the letter in the word ADJUDGE is arranged in the English alphabetical order?
Zero
One
Two
Three
Zero
Mr. Kid starts from Point A and drives 16 km towards east. He then takes a right turn, drives 25 km, turns right and drives 18 km. He then takes a right turn and drives 29 km. He takes a final right turn, drives 2 km and stops at Point P. How far (shortest distance) and towards which direction should he drive in order to reach Point A again? (All turns are 90° turns only unless specified.) 118
2 km to the east
1 km to the north
3 km to the west
4 km to the south
2 km to the east
TBXJ is related to RYTE in a certain way based on the English alphabetical order. In the same way, LPHP is related to JMDK. To which of the given options is FGVA related, following the same logic?
DRVD
DVRD
DDVR
DDRV
DRVD
Based on the English alphabetical order, three of the following four letter-cluster pairs are alike in a certain way and thus form a group. Which letter-cluster pair DOES NOT belong to that group?
(Note: The odd one out is not based on the number of consonants/vowels or their position in the letter-cluster.)
KM-PJ
FH-KD
HJ-MF
DF-IB
KM-PJ
Which of the following alphanumeric clusters will replace the question mark (?) in the given series to make it logically complete?
LQ19 MR21 NS25 OT31 ?
PV39
PV38
PU38
PU39
PV39
Which of the following letter-clusters should replace # and % so that the pattern and relationship followed between the letter-cluster pair on the left side of :: is the same as that on the right side of :: ?
In a certain code language, 'easy to complete graduation' is coded as ‘cl sa jo ld’, 'srilanka graduation not easy' is coded as ‘da hw jo ld’ and 'graduation hard in srilanka' is coded as ‘mj jo cx da’. (All codes are two-letter codes.) How is ‘not’ coded in the given language?
da
hw
jo
ld
da
What is the highest order of Safety Certification in Indian Railways as of government report published in December 2024?
SIL-1
SIL-3
SIL-2
SIL-4
SIL-1
The Eastern Dedicated Freight Corridor traverses through how many States?
6
5
4
10
6
On the recommendation of which committee's report in 1978 were several electrification works included in the Pink Book (which contains works approved by Parliament for execution)?
P Khandelwal Committee report
M Chuhan Committee report
J Raj Committee report
M Banerjee Committee report
P Khandelwal Committee report
As per annual report, during 2023-2024, the Dedicated Freight Corridor Corporation of India Limited (DFCCIL) successfully commissioned how many route kilometers (RKM) of the Dedicated Freight Corridor network?
Between 300-400 RKM
Between 400-500 RKM
Between 600-700 RKM
Between 500-600 RKM
Between 300-400 RKM
The Indian Railways has set a target to become Net Zero Carbon Emitter by which year?
2035
2030
2028
2047
2035
In which year was the first electric-powered train journey in India run between Chhatrapati Shivaji Maharaj Terminus and Kurla in Mumbai?
1935
1925
1955
1895
1935
As of February 2025, the Dedicated Freight Corridor Corporation of India Limited (DFCCIL) operates its TOT service between New Rewari in Haryana and New Palanpur in Gujarat. What does ToT stand for?
Transport on Tracks
Transport on Trains
Trucks on Trains
Trains on Tracks
Transport on Tracks
In 2006, the Eastern Dedicated Freight Corridor (EDFC) foundation was laid by Prime Minister Manmohan Singh in _______.
Kanpur
Ludhiana
Meerut
Ambala
Kanpur
India’s initial railway ideas were pitched in the Madras Parliament between _______.
1842-1844
1864-1866
1853-1855
1831-1833
1842-1844
The proposed North-South Corridor of DFCCIL is to be built between which stations, as of January 2025?
Itarsi - Visakhapatnam
Indore - Visakhapatnam
Indore - Vijaywada
Itarsi - Vijaywada
Itarsi - Visakhapatnam
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