Question

find a single discount equivalent to three sucessive discount of 20percent,5percent,1percent.

Answer 1

let the MP be 100
first discount = 20%
therefore value = 100-20/100*100
=80
second discount = 5%=80-5/100*80
=80-4
=76
third discount = 1%
so we have
76-76*1/100
75.24

so total discount=100-75.24=24.76
or 24.76/100*100%
=24.76%