9) Raj has a certain number of one rupee, fifty paisa and twenty-five paisa coins in the ratio of 3 : 2 : 4 amounting to Rs. 75. How many 1 rupee coins he has?
(A) 15
(B) 30
(C) 45
(D) 60
10) If Rs. 900 are divided among A, B and C in such a way that A’s share is 3 times that of B and B’s share is 2 times that of C. The A’s share is?
(A) Rs. 600
(B) Rs. 550
(C) Rs. 435
(D) Rs. 250
11) Two numbers are respectively 20% and 50% more than a third number. The ratio of the two numbers is:
(A) 4 : 5
(B) 3 : 5
(C) 5 : 7
(D) 2 : 5
12) In a school ratio of the number between male and female teachers is 5 : 9, If the number of female teachers is 27, find the number of male teachers.
(A) 18
(B) 14
(C) 15
(D) 12
13) A certain solution is to be prepared by combining chemicals X, Y and Z in the ratio 18 : 3 : 2. How many litres of the solution can be prepared by using 36 litres of X?
(A) 46 litres
(B) 47 litres
(C) 45 litres
(D) 49 litres
14) The fourth proportion of 11, 7, 22 is
(A) 7
(B) 14
(C) 13
(D) 11
15) If three numbers are in the ratio 3 : 2 : 5 such that the sum of their squares is 1862, the middle number will be
(A) 7
(B) 11
(C) 12
(D) 14
16) A fraction bears the same ratio to 1/27 as 3/7 does to 5/9. The fraction is?
(A) 1/35
(B) 15/63
(C) 1/9
(D) 45/54