Question

By selling a stool for Rs. 67.50, a carpenter loses 10%. How much per cent would he gain or lose by selling it for Rs. 82.50?

Answer 1

CP of stool = 67.50×100/100-10
6750/90=675/9=$75
Of he sold it on 82.50 then gain would be
82.5-75=$7.5
gain % would be = 7.5/75×100=10%

Answer 2

Given Selling price = 67.5 and loss = 10%.

Cost price = 67.5 * 100/(100 - 10)

                  = 75.

Given, Selling Price = 82.50 and cost price = 75.

Gain = 82.50 - 75

        = 7.5.

Gain % = 7.5 * 100/75

             = 10.


Hope this helps!