SSC CPO SI and ASI 2011 Paper

Question : 111 of 200

Marks: +1, -0

A person bought 50 pens for Rs. 50 each. He sold 40 of them at a loss of 5%. He wants to gain 10% on the hole. Then his gain percent on the remaining pens should be

Validate

Solution:

(4) Cost price of 50 pens = 50 × 50 = Rs.2500.
Now for gain of 10%, selling price must be

2500 ×{110}/{100}=Rs. 2750

Selling price of 40 pens at a loss of 5% is

(40 × 50) ×{95}/{100}=Rs. 1900

Therefore, selling price of remaining 10 pens = 2750 - 1900 = Rs. 850.
So, the profit percent is,

= {\SP \of \remaining 10 { \pens }- {\CP} { \of } 10 {\pens}}/{\ {\CP} { \of } 10 {\pens}} × 100

= {850-50 × 10}/{50 × 10} × 100=70 \%

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