26-05-2019
Geography

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147., Two successive discount of 20% and 75% is equivalent to a single discount of:

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romannp romannp

26-05-2019

if two doscounts x and y are given, then

total discount= (x+y-xy/100)%

by the question,

x=20%

y=75%

hence total discount= (20+75-20×75/100)%

=(95-1500/100)%

=(95-15)%

=80%

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