Question

By selling a tv set for Rs 3600,a shopkeeper loses 20% .What must he sell it to gain 10%?​

Answer 1

Answer:

Selling Price (SP) = 3600

Profit = 20%

To determine the Cost Price (CP)

Profit % = (SP - CP) / CP /100

20 = [(3600-CP) / CP ] X 100

20 CP / 100 = 3600 - CP

20 CP + 100 CP = 360000

120 CP = 36000

CP = 360000/120

CP = 3000

Now, if sold for 3150, profit in rupees = Rs 150

Profit % = [150/3000] X 100 = 5%