Date:30/04/2020

Class: JSS 2

Subject: Mathematics

Topic: Commercial Arithmetic

__Commercial Arithmetic__

__Commercial Arithmetic__

Selling Price =Cost price + profit

Cost price = selling price – profit

Profit = Selling price – Cost price

Loss = Cost price- selling price

% profit = Profit x 100%

Cost price 1

% loss = loss x 100%

Cost price 1

Example 1: Find the actual profit and selling price of a cap bought for #250 and sold at a profit of 20%.

Solution

Actual price = 20 x 250

100 1

Profit =#50

Selling price= cost price + profit

Selling price =#250 + #50 =#300

Example 2: Find the percentage profit for a good bought for #300 and sold for #345

Profit = s.p – cp

= #345 -#300 =#45

% profit = 45 x 100%

300 1 = 15%

Assignment

- Find the profit and selling price of a good bought for #1000 and sold at a profit of 15%
- Find the loss and selling price of good bought at for #375 and sold at a loss of 8%