Question

Two successive disconts of 50% and 40% are equivalent to what amount of a single discont

Answer 1

$let \: mp \: be \: 100$

cost after first discount

$= \frac{50}{100} \times 100 = 50$

cost after second discount =

$50 \times \frac{60}{100} = 30$

total discount =70

so it is equivalent to a single discount 70%