Question

if the profit percent is numerically equal to the cost price in rupees and
the cost price
cally equal to the cost price in rupees and the selling price is Rs. 39, then what is​

Answer 1

Step-by-step explanation:

= Rs. 39.

CP = x(let)

Profit % = CP

Or, [(39-x)/x] * 100 = x [% profit= (SP-CP)/CP]

3900-100x = x2

X2+100-3900 = 0

X = 30. (we cannot take negative value of x)