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Question

Two numbers are in the ratio 112:223. But if each number is increased by 15. then the ratio becomes 123:212. The numbers are:

A
27,42
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B
36,48
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C
27,48
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D
27,36
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Solution

The correct option is C 27,48
The ratio of two numbers 112:223=32:83 =9:16

Let the two numbers are 9x and 16x.

According to the given condition,

9x+1516x+15=123:212=53:52

9x+1516x+15=23

3×(9x+15)=2×(16x+15)

27x+45=32x+30

5x=15

x=3

The numbers are 9x=9×3=27 and 16x=16×3=48.


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