Question

A shopkeeper marks his goods at 30 percent above the cost price and then gives a discount of 10 percent. Find his gain percent.

Answer 1

Let C.P. of the goods = Rs.100
M.P. of the goods = Rs. 100+ Rs.30
= Rs.130
Discount = $\frac{10}{100}\times$ Rs.130
= Rs. $\frac{1300}{100}$
= Rs. 13
S.P. of the goods = M.P. - Discount
= Rs.130- Rs.13
= Rs.117
Gain = S.P. - C.P.
= Rs. 117 - Rs.100
= R.17
Gain% = $\frac{Gain}{C.P.}\times 100$
= $\frac{17}{100}\times 100$
= 17%