Question

A’s income is 20% less than that of B. By what per cent is B’s income more than A’s?

Answer 1

Let B’s income = 100 

Then, A’s income = (100 – 20) = 80 

∴ B’s income more than A’s income = (100 – 80)/80 × 100 

= 20/80 × 100 

= 1/4 × 100 

= 25