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Browse complete papersRavi lent Rs. 15,000 to Suresh for 4 years and Rs. 18,000 to Ramesh for 5 years on simple interest at the same rate of interest. He received a total interest of Rs. 16,200 from both loans. What is the rate of interest per annum?
12.9%
8.3%
10.8%
4.75%
11.25%
Correct answer
12.9%
A person can walk a certain distance in 15 days when they rest 6 hours a day. How long will they take to walk three times the distance, 1.5 times as fast, and resting twice as long each day?
41 days
42 days
45 days
22(1/2) days
21 days
Correct answer
41 days
The surface area of water in a swimming pool forms a rectangle with a length of 40 meters and a breadth of 15 meters. The depth of water increases uniformly from 1.2 meters at one end to 2.8 meters at the other end. What is the volume (in m³) of water in the pool?
1500 m3
1700 m3
1200 m3
1080 m3
800 m3
Correct answer
1500 m3
X started a business with an investment of Rs 20,000. After 3 months, Y joins in with 3/4 of the amount that X invested, and X withdraws Rs 5,000. After 4 more months, Z joins with Rs 15,000, and X again withdraws Rs 3,000. After one year, if Z received Rs 4,500 as his share, what was the total profit?
Rs. 16,200
Rs. 23,400
Rs. 10,700
Rs. 21,900
Rs. 14,300
Correct answer
Rs. 16,200
Directions: Read the data carefully and answer the following questions.
A class has a total of 1500 students. All the students are studying exactly one of three different subjects: Physics, Biology and Chemistry. The number of students studying Biology is 25% of the total number of students in the class, and the ratio of boys to girls studying Biology is 2:3, respectively. The number of students studying Chemistry is 80% of the number of students studying Physics. The number of girls studying Physics is 85 less than the number of boys studying Physics. The number of boys studying Chemistry is 25% of the number of girls studying Chemistry.
The number of girls studying Biology is what percentage of the total number of students studying Chemistry?
45%
51%
28%
55%
80%
Correct answer
45%
Directions: Read the data carefully and answer the following questions.
A class has a total of 1500 students. All the students are studying exactly one of three different subjects: Physics, Biology and Chemistry. The number of students studying Biology is 25% of the total number of students in the class, and the ratio of boys to girls studying Biology is 2:3, respectively. The number of students studying Chemistry is 80% of the number of students studying Physics. The number of girls studying Physics is 85 less than the number of boys studying Physics. The number of boys studying Chemistry is 25% of the number of girls studying Chemistry.
If the number of girls studying Chemistry increases by 20% and the number of boys studying Chemistry decreases by 10%, what will be the new ratio of boys to girls studying Chemistry?
4:9
1:4
3:16
2:5
5:12
Correct answer
4:9
Directions: Read the data carefully and answer the following questions.
A class has a total of 1500 students. All the students are studying exactly one of three different subjects: Physics, Biology and Chemistry. The number of students studying Biology is 25% of the total number of students in the class, and the ratio of boys to girls studying Biology is 2:3, respectively. The number of students studying Chemistry is 80% of the number of students studying Physics. The number of girls studying Physics is 85 less than the number of boys studying Physics. The number of boys studying Chemistry is 25% of the number of girls studying Chemistry.
Find the difference between the number of boys studying Chemistry and the number of girls studying Biology as a subject.
185
190
165
125
140
Correct answer
185
Directions: Read the data carefully and answer the following questions.
A class has a total of 1500 students. All the students are studying exactly one of three different subjects: Physics, Biology and Chemistry. The number of students studying Biology is 25% of the total number of students in the class, and the ratio of boys to girls studying Biology is 2:3, respectively. The number of students studying Chemistry is 80% of the number of students studying Physics. The number of girls studying Physics is 85 less than the number of boys studying Physics. The number of boys studying Chemistry is 25% of the number of girls studying Chemistry.
The total number of girls studying Physics and Chemistry together is how much more than the total number of boys studying Biology and Chemistry together?
315
420
435
340
None of these
Correct answer
315
Directions: Read the data carefully and answer the following questions.
A class has a total of 1500 students. All the students are studying exactly one of three different subjects: Physics, Biology and Chemistry. The number of students studying Biology is 25% of the total number of students in the class, and the ratio of boys to girls studying Biology is 2:3, respectively. The number of students studying Chemistry is 80% of the number of students studying Physics. The number of girls studying Physics is 85 less than the number of boys studying Physics. The number of boys studying Chemistry is 25% of the number of girls studying Chemistry.
If 50 students from Physics switch to Chemistry, and 30 students from Chemistry switch to Biology, what will be the new difference between the number of students studying Physics and Chemistry?
25
35
45
55
65
Correct answer
25
What approximate value should come in the place of question mark (?) in the following question?
49.99 × 11.99 − 33.94 × 11.11 = (34.99 + ?) × 5.05
20
5
10
15
25
Correct answer
20