Question

An article was sold for Rs 150 at a profit of Rs 10.find its cost price​

Answer 1

Let the CP be x. SP = 150 and hence Profit = (150 - x).

If it was sold for 135 then CP being x, Loss =( x -135).

It is given that (x-135) = 0.5(150 - x)

=> x - 135 = 75 - 0.5x

=> 1.5x = 210 therefore x= ₹140/-.

Hence Cost Price =₹140/-

Let's check:

Answer 2

Answer:

sp-cp=p

sp-p=cp

150-10=140

hope you understand