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If y > 0, then x is what percent of y?

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If y > 0, then x is what percent of y?

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If y > 0, then x is what percent of y?

(1) y = 5x
(2) x = 5

The OA is the option A.

How can I know the percent that x represents? Experts, may you help here? Thanks in advanced.

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M7MBA wrote:
If y > 0, then x is what percent of y?

(1) y = 5x
(2) x = 5

The OA is the option A.

How can I know the percent that x represents? Experts, may you help here? Thanks in advanced.
The expression "x is what percent of y" can mathematically be written as x = p% of y, where p is the answer.

Thus, x = p%*y => x = py/100 => p = (x/y)*100

If we get the value of x/y, we get the answer.

Let's take each statement one by one.

(1) y = 5x

=> x/y = 1/5. Sufficient.

(2) x = 5

We do not have any information about y. Insufficient.

The correct answer: A

Hope this helps!
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