Question

A watch sold at 15% profit, if it is sold at an extra Rs.200, if 20% profit is made then what is the purchase price of the watch​

Answer 1

Answer:

Let the CP of the watch be Rs.x.

Case I,

Therefore, SP = 120x100=Rs.6x5

Case II,

CP = Rs.(x - 100)

SP = Rs. (6x5−100)

Profit = (6x5−x)=Rs.x5

Therefore, x5x−100×100=25

=> 25x - 2500 = 20x

=> 5x = 2500

=> x = 25005 = Rs.500