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Ratio and Proportion

HomeQuantitative Aptitude⇒ Ratio and Proportion

Q31. If 25% of P = 0.30 of Q = 1/3 of R, then P : Q : R is
(a) 12 : 100 : 9
(b) 14 : 110 : 9
(c) 15 : 120 : 9
(d) 16 : 130 : 9

Q32. The mean proportional of 234 and 104 is
(a) 146
(b) 152
(c) 157
(d) 163

Q33. If 0.36 : x :: 3 : 5 then x = ?
(a) 0.4
(b) 0.6
(c) 0.7
(d) 0.9

Q34. If x2 varies directly as y3 and when x = 5, y = 2 then
(a) 5x2 = 21y2
(b) 6x2 = 23y3
(c) 7x2 = 24y2
(d) 8x2 = 25y3

Q35. If the angles of a triangle are in the ratio 3 : 4 : 5, the smallest one is
(a) 380
(b) 410
(c) 450
(d) 490



Q36. The ratio of a man's age to his son's age is 5 : 1. The product of their ages is 180. The ratio of their ages after 6 years will be
(a) 3 : 1
(b) 5 : 2
(c) 5 : 3
(d) 6 : 1

Q37. Rs. 2150 are divided among P, Q and R is such a way that the share of P is 2/5 of the combined share of Q and R. Thus P gets
(a) Rs. 500
(b) Rs. 550
(c) Rs. 600
(d) Rs. 750

Q38. If x inversly proportional to y and for x = 2   y = 1/6, if x = 3 then y = ?
(a) 4
(b) 6
(c) 8
(d) 9

Q39. If m is proportional to n and n = 10 when m = 3, then what is the value of n when m = 6 ?
(a) 13
(b) 18
(c) 20
(d) 23

Q40. Rs. 2600 are divided among A, B, C and D in such a way that

A's share = B's share = C's share = 2
B's share C's share D's share 3

What is B's share ?

(a) 405
(b) 430
(c) 480
(d) 510


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