11-Out of three numbers first is twice the second and one third of the third number. If the average of three numbers is 16, then the sum of first and third number is

(A) 16

(B) 24

(C) 32

(D) 40

12-The sum of the digits of two digit number is 11 and the difference of the first digit from the second is 5. The two digit number is

(A) 29

(B) 38

(C) 83

(D) 92

13-If x + x/2 + x/4 + x/8 + x/16 = 31/16, then the value of ‘x’ is

(A) 1

(B) 2

(C) 3

(D) 4

14-A 180 meter long train crosses a 60 meter long platform in 12 seconds. What is the speed of train in km/hr.?

(A) 42

(B) 52

(C) 62

(D) 72

15-Sum of two numbers is 45. Their difference is 15. Then the large number is

(A) 15

(B) 25

(C) 30

(D) 35

16-Which of the following fraction is highest?

(A) 7/8

(B) 8/9

(C) 15/16

(D) 17/18

17-The ratio of ages of A and B ten years ago was 2:3. If the ratio of their present age is 3:4, then how old is B now?

(A) 24

(B) 30

(C) 36

(D) 40

18-If the remainder obtained by subtracting a number from its own square is 3 times the number, what is the number?

(A) 3

(B) 4

(C) 6

(D) 9

19-If 120 is 20% of a number, then what the 120% of the number is?

(A) 120

(B) 240

(C) 600

(D) 720

20-There are 3 white balls and 2 black balls. If a ball is taken randomly, what is the probability that it is a black ball?

(A) 1/2

(B) 2/3

(C) 1/5

(D) 2/5