Question

A shopkeeper sold a book for rupees 56 at a profit percent equal to C.P. of that book .Find the C.P.

Answer 1

Step-by-step explanation:

according to question

$\frac{profit}{cost \: price} = 1$

profit = cost price

sales price =56

cost price+profit =56

2×cost price =56

cost price =56/2=₹28

please follow me

Answer 2

If the cost price(x) is numerically equal to the profit percentage ,then the formula to be used is : x+x(square)/100=SP

It can be noticed that when x is substituted by 50,then L.H.S=R.H.S

That is, 50+2500/100=75

So the answer is 50.