SSC CGL 6 Sep 2016 Paper

Question : 53 of 100

Marks: +1, -0

Two successive discounts of 10% and 20% are equivalent to a single discount of

Solution:

Single equivalent discount
=

(x+y-{xy}/{100})

%
=

(20+10-{20×10}/{100})

%
= (30 – 2)% = 28%

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