1.

The ratio of number when 5 subtracted to it and 2 is added to it is 5 ∶ 7 then finds the number?1. 202. 22.53. 254. 32.5

Answer» Correct Answer - Option 2 : 22.5

Given:

The ratio of number when 5 subtracted to it and 2 added to it is 5 ∶ 7

Concept used:

Basic Concept of ratio and proportion

Calculation:

Le the ratio be x

∴ When 5 is subtracted to it the number is (x - 5) and when 2 added to it the number will be (x + 2)

Now, the ratio is 5 ∶ 7

∴ (x - 5)/(x + 2) = 5/7

⇒ 2X = 45

⇒ X = 22.5

Hence, option (2) is correct.



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