A Trader sold 40 erasers and earned a profit equal to the selling price of 12 erasers. Find his profit percent.
Answers
The profit percent of the trader is : 233.33%
This is your answer, friend!
Answer:
His profit percent is 42.85 %
Step-by-step explanation:
Given : Trader sold 40 erasers
Profit = selling price of 12
Profit % = ?
Solution : Let 'c' be the cost price of one eraser
then cost price of 40 eraser = 40c
Let 's' be the selling price of one eraser
then selling price of 40 eraser = 40s
Given, Profit = selling price of 12
= 12s ----------------1
We know Profit = (selling price - cost price)
= 40s-40c ---------------2
equating 1 & 2
12s = 40s -40c
40c = 28s
s = 40c/28
=10c/7
% profit = (selling price - cost price)/cost price x 100
= (10c/7 - c)/c X100
= 3/7 x 100
= 42.86 %