Question

A is 25% older than B.By what percent is B younger thanA

Answer 1

75% I hope you like it

Answer 2

Let Bs age be x.
Therefore,As age is x×25%
= x/4
Therefore,by how much A is older than B.
x-x/4=3x/4
Therefore,the percentage
$\frac{3x}{4} \div x \times 100\% \\ = 75\%$

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