ICSE Class 8 Answered

Let sell price is S, Marked Price is M and Cost price is C

Profit = Sell Price - Cost Price = S - C

here sell price is after 20% discount on Marked Price = 0.8 * M

Now, target profit is 20% of Cost price = 0.2 *C

Keeping all the values in profit equation.

0.2 * C = 0.8 * M - C

Solve the above equation;

1.2 * C = 0.8 * M

M = 1.2/0.8 C = 1.5 C

Marked Price should be 1.5 times of Cost price to get the profit of 20% on product after sell.

That is 50% more than CP