Question

The single discount which is equivalent to two successive discount of 20%and25% is ..................

Answer 1

Let MP be x

First discount = 20% of x = 20/100 × x = x/5

Net SP = x - x/5 = 4x/5

Second discount = 25% of 4x/5 = 25/100 × 4x/5 = x/5

Net SP = 4x/5 - x/5 = 3x/5

Then

Single discount = x - 3x/5 = 2x/5

And

Discount% =2x/5 × 100/x = 40%