Practice MCQ Questions and Answer on Ratio

61.

If A : B = 12 : 13 and B : C = 12 : 13,  then A, B, C is equal to -

  • (A) 1 : 2 : 6
  • (B) 2 : 3 : 3
  • (C) 3 : 2 : 6
  • (D) 9 : 6 : 4

62.

Two numbers are such that the ratio between them is 4 : 7. If each is increase by 4, the ratio become 3 : 5. The larger number is = ?

  • (A) 36
  • (B) 48
  • (C) 56
  • (D) 64

63.

In a bag, there are coins of 25 p, 10 p and 5 p in the ratio of 1 : 2 : 3. If there is Rs. 30 in all, how many 5 p coins are there?

  • (A) 50
  • (B) 100
  • (C) 150
  • (D) 200

64.

If A : B : C = 2 : 3 : 4, then the ratio AB : BC : CA is equal to -

  • (A) 4 : 9 : 16
  • (B) 8 : 9 : 24
  • (C) 8 : 9 : 12
  • (D) 8 : 9 : 16

65.

75of 58+38of 139.2=?

  • (A) 133.4
  • (B) 137.2
  • (C) 127.8
  • (D) 131.6

66.

A man spends his two months income in three months time, if his monthly income is 6000 , then his annual savings is = ?

  • (A) Rs. 18000
  • (B) Rs. 24000
  • (C) Rs. 12000
  • (D) Rs. 36000

67.

If 5a + 3b : 2a - 3b = 23 : 5, then the value of a : b is

  • (A) 1 : 2
  • (B) 1 : 4
  • (C) 2 : 1
  • (D) 4 : 1

68.

A barrel contains a mixture of wine and water in the ratio 3 : 1. How much fraction of the mixture must be drawn off and substituted by water so that the ratio of wine and water in the resultant mixture becomes 1 : 1 = ?

  • (A) 14
  • (B) 13
  • (C) 34
  • (D) 23

69.

The ratio of urea and potash in a mixed fertilizer is 7 : 3. Express the quantity of urea present as percentage of the total amount of fertilizer.

  • (A) 20%
  • (B) 50%
  • (C) 60%
  • (D) 70%

70.

Alloy A contains metals x and y only in the ratio 5 : 2 and alloy B contains these metals in the ratio 3 : 4. Alloy C is prepared by mixing A and B in the ratio 4 : 5. The percentage of x in alloy C is:

  • (A) 45
  • (B) 5559
  • (C) 4449
  • (D) 56