Question

11. Pens are bought at 12 for a rupee and sold at 9 for a rupee. Find the gain%.

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Answer 1

Answer:

-25%

Step-by-step explanation:

C.P = Rs. 12

S.P = Rs. 9

Profit = S.P-C.P = -3

Gain% = -3/12*100 = -25%

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Answer 2

Answer:

Let the price of pens be "x" instead of one rupee.

Cost Price (C.P) of 12pens = 12x

Selling Price (S.P) of 9pens = 9x

C.P = S.P

12x = 9x

This can be written as,

S.P = C.P

12x = 9x

Gain = 12x - 9x = 3x

Gain% = Gain/C.P*100 = 3x/9x*100 = 33.33%

Step-by-step explanation:

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