Question

5. The marked price of an article is 50% above cost price. When marked price
increased by 20% and selling price is increased by 20%, the profit doubles.
original marked price is 300. Then original selling price is
a. Rs. 200
b. Rs. 250
C. Rs. 240
d. Rs. 2​

Answer 1

Answer:

Given,

MP = 300

Marked price was 50% above the cost price.

So,

CP = 200 [As 200 + 50% of 200 = 300]

Let the SP was X.

New MP = 300 + 20% of 300 = 360.So,

New SP = X +20% of X = 1.2X

Now, according to question,

1.2X -200 = 2*(X -200)

1.2X - 200 = 2X - 400

0.8X = 200

X = 250.

Thus, original selling price was Rs. 250.

Correct Option: B

Let the original S.P. be y.

C.P. of the article =300 × 100= $ 200150

After corresponding increases

y × 120- 200 = 2 (y - 200)100

⇒6y- 200 = 2y - 4005

⇒ 6y – 1000 = 10y – 2000

⇒ 4y = 1000 ⇒ y = $ 250

its correct method and answer