Giving two successive discounts of 40% is equal to giving one discount of ________%.

Solution;

Let initial price be 100

The first discount of 40% reduces price from 100 to (100 – 40) = 60

Second discount of 40% reduces amount 60 to (60 – 24) = 36

Successive discount will add up to (40 + 24)/100 = 0.64 = 64%

∴ Two successive discounts of 40% is equal to giving one discount of 64%.