Question

A shopkeeper buys 50 pencil for rupees 80 and sells them at 40 pencils for rupees 90. find the gain or loss percent​

Answer 1

Answer:

Gain because he buys 50 pen in80 rupee and sells 40 in 90 rupees

Answer 2

Given total cost = 80 and no. of pencil is = 50.

the cost of 1 pencil is 80/50 = 8/5rs.

now for 40 pencil the cost would be 40*(8/5) = 64 rs

but he sold those at 80rs in total.

so gain % is (80-64)/64 = 16/64 = 25%

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