Question

If ( + ) is more than ( − ) by 40% of (x – y), then how much percent of y is x?

Answer 1

In case of this sum. 1 important tip that

x% = x/100. Keeping this in mind the mathematical equation for the above question becomes.

x =( 80/100) y.

Now if you cross multiply to keep on y on either LHS or RHS. Then

Y = x(100/80)

i.e y = x(5/4)

In order to get the percentage we need 100 in denominator So multiply and divide 5/4 with 25 we get

Y = (125/100)x

i.e y = 125% of x