Ratio and Proportion Practice Test 5

Question : 13 of 25

Marks: +1, -0

The books of Science, Literature and Fiction in a school library are in the ratio 6 : 7 : 9. If these books are increased by 45%, 50% and 65% respectively, what will be the ratio of the increased books?

45 : 50 : 65
56 : 72 : 101
58 : 70 : 99
45 : 38 : 72
Cannot be determined

Validate

Solution:

Let the Science, Literature and Fiction books be 6x, 7x and 9x respectively. So, the number of increased books are

(145/100×6x) :(150/100×7x):( 165/100×9x )

=87/10x:21/2x:297/20x

= 174 : 210 : 297
= 58 : 70 : 99

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