Question

If the ratio of two numbers is 5:2, whaat is the ratio to their sum to their difference?

Answer 1

Let the numbers be x and y

$5 + 2 = 7$

It implies that,

$x :y = 5:2$

So, it also says that

$x + y = 5 + 2 \\ x + y = 7$

The difference is

$5 - 2 = 3$

So, last ratio is

$7:3$

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