1. Two taps can fill a tank in 18 and 24 min respectively. When both the taps are opened find when the first tap be turned off so that the tank may be filled in 12 min.

A) 9 minutes

B) 18 minutes

C) 3 minutes

D) 6 minutes

2. A man travels 20 km on foot at 5 kmph and another 10 km by bus at 20 kmph. What is his average speed?

A) 6.67 Kmph

B) 5.67 Kmph

C) 6.97 Kmph

D) 4.87 Kmph

3. A group of 7 students with average weight of 66 kg is joined by another 5 students with average of 64 kg. What is the average of the total group?

A) 45.19 kg

B) 65.17 kg

C) 63.7 kg

D) 35.17 kg

4. Equal quantities of a 1:5 and 3:5 milk to water solutions are mixed together. What will be the ratio of milk to water in the new mixture?

A) 3:4

B) 1:3

C) 1:1

D) 13:35

5. A man is 37 yrs old and his two sons are 8 yrs and 3 yrs old. After how many years will he be twice as old as their united age?

A) 5

B) 10

C) 6

D) 11

6.Find the greatest number that will divide 43, 91 and 183 so as to leave the same remainder in each case.

A) 4

B) 8

C) 16

D) 2

7. Which of the following fraction is the largest ?

A) 7/8

B) 12/17

C) 41/30

D) 43/80

8. .009/? = .01

A) .00009

B) .009

C) .9

D) 90

9.The least perfect square, which is divisible by each of 21, 36 and 66 is:

A)214344

B)213444

C)214434

D)231444

10.If x = (√ 3 + 1)/(√ 3-1) and y = (√ 3 – 1)/(√ 3 + 1) , then the

value of (x2 + y2) is:

A)13

B)11

C)12

D)14

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