A man buys an article and sells it at a profit of 20%. If he had bought it at 20% less and sold it for Rs.75 less, he could have gained 25%. What is the cost price?

A. Rs.370
B. Rs.375
C. Rs.350
D. Rs.300

Explanation:

CP1 = 100 SP1 = 120

CP2 = 80 SP2 = 80 * (125/100) = 100

20 —– 100

75 —– ? => 375