**(1) 12 hours**

(2) 7 hours

(3) 8 hours

(4) 10 hours

Answer:

**(1) 12 hours**

Question #2. A sum of money on compound interest amounts to ` 6,941 in 5 years and ` 6,310 in 4 years.

Then the rate of interest is

(1) 6%

(2) 8%

**(3) 10%**

(4) 12%

Answer:

**(3) 10%**

Question #3. Considering the sums of the first three column, the value of A in the following table is

1 3 3 A

2 4 9 10

1 2 4 6

(1) 8

(2) 9

(3) 10

(4) 11

**Answer: (2) 9**

Question #4. A man purchased sugar worth ` 400. He sold 3/4th at a loss of 10% and the remainder at a gain

of 10%. On the whole, he gets

(1) a loss of 5%

(2) a loss of 4%

(3) a gain of 4%

(4) a loss of 4& 1/2%

**Answer: (1) a loss of 5%**

Question #5. While measuring the side of a square an error of 10% in excess is made. The error percentage in the calculated area is

(1) 20%

(2) 21%

(3) 22%

(4) 10%

**Answer: (2) 21%**

Question #6. Two equal glasses filled with mixture of milk and water in the proportion of 2 : 1 and 1 : 3 respectively are emptied entirely into a third container. What is the proportion of milk and water in the third container ?

(1) 11 : 13

(2) 11 : 12

(3) 13 : 11

(4) 12 : 11

**Answer: (1) 11 : 13**

Question #7. A container contains 40 litres of milk. From this container 8 litres of milk was taken out and replaced by water. This process was repeated two more times. Then the quantity of milk in the container is

(1) 16 litres

(2) 16.28 litres

(3) 18.38 litres

(4) 20.48 litres

**Answer: (4) 20.48 litres**

Question #8. The calendar for the year 2007 will be the same for the year

(1) 2014

(2) 2015

(3) 2017

(4) 2018

**Answer: (4) 2018**

Question #9. The traffic lights at three different circles change after 4 seconds, 25 seconds, 48 seconds. If they all change simultaneously at 2:20 am, then they will again change simultaneously at

(1) 2.30 a.m.

(2) 2.40 a.m.

(3) 2.50 a.m.

(4) 3.00 a.m.

**Answer: (2) 2.40 a.m.**

Question #10. The ratio of the ages of a father and his son after 10 years from now would be 5 : 3, while 10 years ago it was 3 : 1. What is the ratio of the age of son to that of father today ?

(1) 1 : 2

(2) 2 : 3

(3) 1 : 3

(4) 3 : 5

**Answer: (1) 1 : 2**

Question #11. The average weight of 110 students of a college is 55 kg. The average weight of the boys and that of girls are 61 kg and 50 kg respectively. Then the number of girls in the college is

(1) 55

(2) 60

(3) 65

(4) 70

**Answer: (2) 60**

(1) 32

(2) 33

(3) 34

(4) 97

**Answer: (2) 33**

Question #13. In an examination, 60% students

passes in Physics and 60%

passed in Chemistry. If 50%

students passed in both Physics

and Chemistry, then percent of

students failed in Physics and

Chemistry is

(1) 10%

(2) 20%

(3) 30%

(4) 50%

**Answer: (3) 30% **