Marked price of an article is 300 more than the cost price If after 50 discount the selling price is...........

Quantitative Aptitude(IBPS CL) Profit and loss

Marked price of an article is 300% more than the cost price. If after 50% discount, the selling price is Rs. 1200, then the cost price of the article is?

Rs. 450

Rs. 600

Rs. 750

Rs. 800

Rs. 1000

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Explanation:

Let the cost price be Rs. 100x, then
Marked price = 100x + 300% of 100x = 100x + 300x = Rs. 400x
Selling price = Marked price – discount = 400x – 50% of 400x = 400x – 200x = 200x
According to question
200x = Rs. 1200
⇒ x = 6
Hence, the cost price = Rs. 100x = 100 × 6 = Rs. 600.