Question

A supplier supplies cartridges to a news paper publishing house.

He earns a profit of 20% by selling cartridges for Rs. 540.

Find the cost price of the Cartridges?

Answer 1

explanation in the image

Answer 2

Given: A supplier earns a profit of 20% by selling cartridges for Rs. 540.

To find: We have to find the cost price.

Solution:

To determine the cost price we have to follow the below steps-

The selling price of the cartridges is 540 rupees.

The suppliers earn a profit of 20%.

Let the cost price is x rupees.

So, the percentage of profit is given as-

(S.P-C.P)/C.P×100

So, we can write-

$\frac{540 - x}{x} \times 100 = 20 \\ 540 \times 5 - 5x = x \\ 6x = 540 \times 5 \\ x = 450$

The value of x is 450.

Thus, the cost price of the cartridges is 450 rupees.