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A man purchased 150 pens at the rate of Rs. 12 per pen. He sold 50 pens at a gain of 10%. The percentage gain at which he must sell the remaining pens so as to gain 15% on the whole outlay is

A) \( \Large 21\frac{1}{2}\% \)
B) 20%
C) 17%
D) \( \Large 17\frac{1}{2}\% \)

Correct Answer:




D) \( \Large 17\frac{1}{2}\% \)

Description for Correct answer:
According to question,

Pen \( \times \)Profit (%) = Total Profit

Total 150 pens\( \times \)15 = 2250

50\( \times \)10 = 500

100\( \times \)a = 1750

a = 17.5

\( \therefore \)Remaining profit % of pen = 17.5%

Part of solved Profit and Loss questions and answers : >> Aptitude >> Profit and Loss

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