A shopkeeper buys 50 pencils for80 and sells them at 40 pencilsgain or

1.	A shopkeeper buys 50 pencils for80 and sells them at 40 pencilsgain or loss percent.
Answer» 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% thanks khana se ho

A shopkeeper buys 50 pencils for80 and sells them at 40 pencilsgain or loss percent.

Answer»

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%

thanks

khana se ho