Question

An amount is first discounted by 20% and again discounted 12.5%.what is the single discount in %?

Answer 1

Answer:

let Rs 100 be SP,

=> after 20% discount, SP₂ = Rs 80

=> after 12.5% discount on SP₂ of Rs 80

=> SP₃ = 80 - (80 × 12.5)/100

=> 80 - 10

=> Rs 70

therefore single Discount = SP₁ - SP₃

=> 100 - 70 = Rs 30

therefore single Discount = 30%