SSC CHSL 19 Mar 2020 Shift 2 Paper

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Question : 71 of 100

Marks: +1, -0

The printed price of a book is

₹ 150

. If it is sold after two successive discounts of

30 \%

and

40 \%

, then find its selling price.

₹ 65
₹ 63
₹ 66
₹ 64

Solution:

Effective discount of

30 \%

and

40 \%

=30+40-{30 \×40}/{100}

=70-12=58 \%

∴ Selling price

={150}/{100} \×(100-58)=₹ 63

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