SSC CGL 9 Aug 2015 Shift 1 Paper

Question : 115 of 200

Marks: +1, -0

10% discount and then 20% discount in succession is equivalent to total discount of

Solution:

Single equivalent discount
=

(x+y-{xy}/{10})%

(10+20-{10×20}/{100})%

= (30 – 2)% = 28%

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