Question

How much percent above the cost price should Ravi Mark's his goods so that after allowing a discount of 10% on the marked price , he gains 8%.​

Answer 1

Answer:

20%

Step-by-step explanation:

Let the cost price be ₹ 100.

So, gaining 8% on the C.P will be:

100 + (100 * 8%) = ₹ 108

If ₹ 108 is the S.P after allowing a discount of 10%, then the M.P (marked price) is:

Taking the M.P as x,

x - (x * 10%) = ₹ 108

⇒ 90x/100 = ₹ 108

⇒ x = (108 * 100)/90

⇒ x = ₹ 120

Now, we need to find what percent is ₹120 (M.P) of ₹ 100 (C.P).

(120-100)/100 * 100

⇒ 20/100 * 100

⇒ 20 %

Hence, he needs to mark his goods 20% above the cost price. Hope it helps!