Question

A cement company earns a profit of ` 8 per bag of white cement sold and a loss of ` 5 per bag of grey cement sold. What is the number of white cement bags it must sell to have neither profit nor loss, if the number of grey bags sold is 6,400 bags.

Answer 1

Profit from 1 bag of white cement = + Rs 8

Loss from 1 bag of grey cement = - Rs 5

Find the loss made from the 6400 grey cement:

Loss from 1 bag of grey cement = Rs 5

Loss from 6400 bags of grey cement =  6400 x 5 = Rs 32000

Find the number of bags of white cement sold:

He did not make any profit or loss. Therefore he must have made Rs 32000 from the white cement to cover the loss of Rs 32000 from the grey cement.

1 bag of white cement = Rs 8

Numb of bags of white cement = 32000 ÷ 8 = 4000

Answer: He must have sold 4000 bags of white cement