Question

A man buys an article for rupees x and sell it for rs 56 at a gain of x% find the value of x

Answer 1

Given:

Cost price of the article is ₹x.

Profit- x%

Selling price of the article is ₹56.

To find:

The value of the x.

Solution:

1) The gain percentage on the article given is x% and we have the formula of it:

• Profit% =$\frac{profit}{CP}*100$

• And Profit = SP - CP = 56-x

2) If we put the values in the formula then we get

• x% = $\frac{56-x}{x} *100$

• x = $\frac{56-x}{x} *100$

• x²+100x-5600 = 0

• x²+140x-40x-5600 = 0

• x(x+140)-40(x+140) = 0

• (x-40)(x+140) = 0

• x = -140 and x = 40

3) We will consider the value 40 because the price can't be negative.

The cost price of the article is ₹40.

Answer 2

Answer:

your answer mate

hope it help u