Kemal G. answered 04/06/17
Tutor
4.8
(5)
Patient and Knowledgeable Math and Science Tutor with PhD
Hi Shirley,
The profit is 290 - 250 = Rs 40
then to find the percent profit, ratio the profit to the purchase price
40 x
----- = ------
250 100
cross multiply
4000 = 250x
x = 16 %