Question

by selling a radio for rupees 903 a shop keeper gains 5% find the cost price of the radio?

Answer 1

CP=SP×100
100+P%

SP=903
P%=5%

NOW PLACE THE VALUE

CP=903×100
100+5%

CP=903×100
105

CP=90300
105

CP=860 ANSWERS

Answer 2

Sales Price = 100 + 5 = 105%

Equate Sales Price:

105% = Rs 903

Find 1%:

1% = 903 ÷ 105 = Rs 8.6

Find 100% (Cost Price):

100% = 100 x 8.6 = Rs 860

Answer: The cost price of the radio is Rs 860