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

2 Answers

3 votes
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
User Dragosaur
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8.7k points
4 votes

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

User Jesus Bejarano
by
8.2k points

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