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Question

Quantitative Aptitude Question on Ratio and Proportion

If xy=2\frac{x}{y}=2 , what is the value of 8ya\frac{8y}{a} = ?

A

2

B

4

C

6

D

Cannot be determined

Answer

4

Explanation

Solution

from the equation xy=2\frac{x}{y} = 2, we can use xx in terms of yy:

x=2yx = 2y

Now, to find the value of 8ya\frac{8y}{a}, we need to relate aa to yy. If we assume a=xa = x then:

8ya=8y2y=82=4\frac{8y}{a} = \frac{8y}{2y} = \frac{8}{2} = 4

So, the value of 8ya\frac{8y}{a} is 4.

The correct option is (B): 4