Search Previous Year Questions

Given:

Percentage of voters cast their vote = 75%

Invalid vote percentage = 2%

Candidate got votes 75% of valid votes = 9261

Calculation:

Let us take the total number of voters be x

casted vote % = 75% of x 

valid casted vote = 98% of 75% of x

⇒ 75% of total valid vote = 75% of 98% of 75% of x

⇒ 9261 = 3/4 × 3/4 × 98/100 × x  

⇒ x = (1029 × 16 × 100)/98

⇒ x = 16800 

∴ The total number of voters will 16800

Given:

Amount = 2 × Principal

T= 4 years

Amount = 8 × Principal

Formula Used:

S.I = (P × R × T)/100

A = P + S.I

Calculation:

If A = 2P 

⇒ 2P - P = S.I

then S.I = Principal

⇒ P = (P × R × 4)/100

⇒ R = 25%

When Amount = 8 times of Principle

then S.I = 7P

⇒ 7P = (P × 25 × T)/100

⇒ T = 28 years

 ∴ In 28 years it will amount to 8 times of itself

Sum double itself in 4 hour

Interest is 1 × sum in 4 years

In the question asked 8 times

interest will be 7 × sum

1 sum = 4

⇒ 7 sum = 4 × 7 = 28 years

 ∴ In 28 years it will amount to 8 times of itself

Given:

The cost price of 35 kg of rice  = Rs. 9.50 per kg

the cost price of 30 kg of rice = Rs. 10.50 per kg

Formula Used:

Profit  = (Profit%/100 ) × CP

Calculation:

Total cost price of mixture of 35 kg and 30 kg of rice  = (35 × 9.50 + 30 × 10.50)

Total cost price of 65 kg mixture  = (332.5 + 315) ⇒ Rs. 647.5

⇒Rate per kg of mixture  = 647.5/65

profit of the mixture per kg  = (135/100) × (647.5/65) ⇒ Rs. 13.44

∴ The selling price of the mixture of rice per kg is Rs.13.50

Given:

The ratio of length and breadth = 6 : 5

Difference between the length and breadth of a rectangular plot = 34 meters

Formula Used:

Area of the rectangle = l × b square units

The perimeter of the rectangle = 2 × (l + b)

Calculation:

let us take the  length and breadth  of the rectangle be 6x, 5x respectively

According to the question,

The difference between the length and breadth of plot = Difference in the ratio of length and breadth of the plot.

⇒ 34 = 6x - 5x

⇒ x = 34 

Lenght of the rectangle = 6 × 34 = 204 meters

Breadth of the rectangle = 5 × 34 = 170 meters

The perimeter of the rectangle = 2 × ( 204 + 174) = 748 meters 

∴ The perimeter of the rectangle is 748 meters

Given:

Required % to pass the exam = 40%

A student scored = 265 marks

Student failed by 55 marks

Calculation:

Let us take the total marks be x

According to the question,

265 + 55 = 40% of x

⇒ 320 = 40/100 of x

⇒ (320 × 100)/40 = x  

⇒ 800 = x

∴ The total marks in the said examination is 800.

Given:

Numerator increased by 200%

Denominator increased by 150%

Resultant fraction = 9/35

Calculation:

Let us take the numerator be x

Let us take the denominator be y

According to the question

(x + 200% of x)/(y +150% of y) = 9/35

⇒ (x+2x)/(y+1.5y) = 9/35

⇒ 35(3x) = (2.5y)9 

⇒ 105x = 22.5y

⇒ x/y = 3/14

∴ The original fraction = 3/14

The logic follows here is:

Similarly,

Hence, the correct answer is "6897".

The logic follows here is:

As Coffee contains Caffeine.

Similarly,

Tobacco contains Nicotine.

Hence, the correct answer is "Nicotine".

• Caffeine, a Stimulant That Can Enhance Brain Function and Boost Metabolism. Caffeine is the most commonly consumed psychoactive substance in the world.
• Novocaine is another term for procaineis a local anesthetic drug of the amino ester group. It is most commonly used in dental procedures to numb the area around a tooth and is also used to reduce the pain of intramuscular injection of penicillin.
• Tannins are chemical compounds found in a variety of plant-based foods and beverages, including tea. They're responsible for giving the tea its dry, somewhat bitter flavor and providing color in certain types of tea.

Putting options in the black spaces:

 

Option (3) is giving a pattern of aaabbbaaabbb. 

No other option is giving any particular pattern.

Hence, the correct answer is "abab".

According to the given information the possible diagram is:

From the above diagram, P is in the south direction with respect to X.

Hence, the correct answer is "South".

Important Points

If the distance is not given between any two variables then an "exact" case will be formed.  

Here, distance is not given so the only possible case is P in the exact south direction with respect to X.