Question

$A\text{'}s$ income is $20\%$ less than that of $B$ by what percent is $B\text{'}s$ income more than $A\text{'}s.$

Answer 1

Let $B\text{'}s$ income $=₹100$
Then $A\text{'}s$ income $=B\text{'}s$ income $-20\%$ of $B\text{'}s$ Income

$A\text{'}s$income $=100-\frac{20}{100}\times 100$

$=100-20$

$=80$
Now, $B\text{'}s$ income is $₹20$ more than $A$

$=\frac{20}{80}\times 100$

$=\frac{100}{4}$

$=25\%$
Hence$,$ $B\text{'}s$ is $25\%$ more than $A\text{'}s$ income.