Question

Selling price of an article is Rs 39. Il numeral value of gain percent is equa
to its CP. then the C.P. of the article is :-​

Answer 1

Answer:

SP = CP * (100+profit)/100

Profit % = CP

So,

39 = CP*(100+CP)/100

$3900 = 100cp + {cp}^{2}$

Cost Price = Rs 30