Question

A discount series of 10%, 20% and 40% is equivalent to a single discount of _____

Answer 1

Answer:

56.8 %

Step-by-step explanation:

Let the CP be Rs.100

First discount = 10%

SP = 90/100 × 100 = Rs.90

Second discount = 20%

SP = 80/100 × 90 = Rs.72

Third discount = 40%

Final SP = 60/100 × 72 = Rs.43.20

Total discount = Rs.(100 - 43.20) = Rs.56.80

Hence, 56.8% discount is equivalent to discount series of 10%, 20% and 40%.