What Quantity Must Be Subtracted from Each Term of the Ratio 9: 17 to Make It Equal to 1: 3? - Mathematics

Sum

What quantity must be subtracted from each term of the ratio 9: 17 to make it equal to 1: 3?

Solution

Let x be subtracted from each term of the ratio 9: 17.

(9 - x)/(17 - x) = 1/3

27 - 3x = 17 - x

10 = 2x

x = 5

Thus, the required number which should be subtracted is 5.

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Selina Concise Maths Class 10 ICSE
Chapter 7 Ratio and Proportion (Including Properties and Uses)
Exercise 7 (A) | Q 11 | Page 87