Question

Every year before the festive season,a shopkeeper increases the price of the product by 35% and then introduce two successive discount of 10% and 15% respectively.what is percentage loss and percentage gain ?

Answer 1

Let C.P = 100

35% increase in S.P = Rs 135

10% discount in Rs 135 = $\frac{135\times 10}{100}=13.5$

sp 1st S.P = 135-13.5 = 121.5

Again 15% discount in 1st S.P = $\frac{121.5\times 15}{100}$

$=18.225$

2nd S.P = $121.5-18.225=103.275$

So finally C.P = 100, S.P = 103.275

Gain by $103.275-100=3.20$% = $3.275$%