Question

find a discount equivalent to three discounts10%, 20%and10%​

Answer 1

Step-by-step explanation:

let let the market price call to rs 100

first discount barabar 10% =rs 10

price after discount =rs100-10=rs90

second discount =20%after 90

10*90/100=rs9

price after discount=rs 90 - 9

third discount=10 % of 72

10*72/100=36/5=7.2

price after discount=9-7.2=1.8

Answer 2

Answer:

Three substance=300.

discounts= 10%+20%+10%=40%

300/40%=7.5%