SSC CHSL 16 Apr 2021 Shift 2 Paper

Section: Quantitative Aptitude

Question : 65 of 100

Marks: +1, -0

The marked price of an article is

₹ 300

. It is sold for

₹ 177.84

after giving three successive discounts of

20 \%, x \%

and

5 \%

. What is the value of

x

Solution:

According to the question,

300 × \;{80}/{100} × \;{(100-x)}/{100} × \;{95}/{100}=177.84

\{ ∵ M P[\;{100-d_{1}}/{100}][\;{100-d_{2}}/{100}]

\;\; [\;{100-d_{3}}/{100}]= {SP}\}

∴ \;\; (100-x)=78

x=100-78=22 \%

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