Question

A's income is 20 less than that of b's how much percent is b's income more than a's

Answer 1

Suppose B income is 100
A income is 80
For rs80, B income is rs 20 more
% of income B more than A is=(100/80)*20=25

Answer 2

Let B's income be Rs 100.
Then, A's income =Rs 80.
so, B's income is more than A's income by=(100_80)*100%÷80
=20*100%=20%=Rs 125
Therefore B's income is more than that of A's by (125_100)%,i.e, 25