If A’s income is 40 percent more than B’s income, then what percentage does B earn less than A?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 
A's monthly income is 40% more than B that of B
Let the income of B be 100.
Income of A = 100 + 40% of 100 = 140
Percent of B's income less than A = [(140 - 100)/140] × 100 = 400/14 = 284/7%