Question

if a mab were to sell his tv set for rs 7200 he would have lost 25% for what price must he sell it to gain 25%

Answer 1

Given Selling price = 7200.

Loss = 25%.

We know that cost price = [100 / (100 - Loss%)] * SP

                                          = [100 / (100 - 25)] * 7200

                                          = [100 / 75] * 7200

                                          = $\frac{4}{3} * 7200$

                                          = 2400 * 4

                                          = 9600.


Given Gain = 25%.

We know that Selling price = [(100 + Gain%)/ 100] * CP

                                              = [(100 + 25)/100] * 9600

                                              = (125/100) * 9600

                                              = 12000.


In order to gain 25%, he should sell at 12000 rupees.


Hope this helps!