Question

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please pay Attention MATHS LOVERS

Answer 1

Given, Selling price of an article = 171.

Given, Gain =10%.

We know that cost price of an article = [100/(100 + Gain%)] * SP

                                                              = [100/110] * 171

                                                              = 155.45.

Given, gain = 20%.

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

                                                                  = [(100 + 20)/100] * 155.45

                                                                  = [120/100] * 155.45

                                                                  = 186.54.

Hope it helps!

Answer 2

S.P = 171

Gain = 10%

. C.P = 171 x 100/110

He want a profit = 20%

New S .P = 171 x 10/11 x 120 /100 = 186.54