Question

80% of a number is x. What is 40% of the number?

Answer 1

1/2x

the reason why is cuz if 80% of a # is x, and 40% is 1/2 of 80%, than 40% must be 1/2x

Answer 2

80% of a number is x

so let us say the number is y

that means 80 % of y is x.

Making an equation we have,

$0.08 y = x$

So solving for y we have,

$y =12.5x$

Now we have to find what is 40 % of the number.

So we have to find 40 % of y here

0.04 *y = 0.04 (12.5 x)

y=1.5 x

So we can say that 40 % of the number is 1.5 x