Question

A shop keeper sells 20 pencils for the same money as he paid for25.what is his gain percent

Answer 1

cost price of 25 pencils is same as selling price of 20 pencils.
If 25 pencils costs RS.100 then cost of 1 pencil would be (100/25) which is RS.4
If selling price of 20 pencils is Rs.100 then selling price of 1 pencil would be (100/20) which would be RS.5
So if shopkeeper sells all the 25 pencils then the amount he gains would be (25*5) which is RS. 125
Therefore the amount he gains would be (125-100) which is Rs.25
So the gain percent would be (25/100)*100 which further results in 25%

Answer 2

Answer:

25%

Step-by-step explanation:

Let cost of each pencil be Rs 1.

Given SP of 20 pencils = CP of 25 pencils

Then Profit = 25 - 20 = 5

Profit % = 5/20 × 100 = 25 %