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Cost price of 100 books is equal to the selling price of 60 books. The gain percentage or loss percentage is :

A) \( \Large 66\frac{2}{3} \%\)
B) 0.67
C) 0.66
D) \( \Large 66\frac{2}{3} \%\)

Correct Answer:




D) \( \Large 66\frac{2}{3} \%\)

Description for Correct answer:

Let cost price of 100 books = x

Therefore, C P of one book = \( \Large \frac{x}{100} \)

In this case there is always gain

Therefore, Profit % = \( \Large \frac{\left[ \frac{x}{60}-\frac{x}{100} \right]}{\frac{x}{100}} \times 100 \)

= \( \Large \frac{40}{60} \times 100 = 66\frac{2}{3}\% \)

Part of solved SSC Practice test(1) questions and answers : Exams >> SSC Exams >> SSC Practice test(1)

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