Question
Remi earns a profit of 20% on selling an article at a
certain price. If she sells the articles for ₹. 8 more, she will gain 30%. What is the original cost price of 16 such articles?Solution
Let the C.P. of an article be Rs. x. According to the question, 120% of C.P. + 8 = 130% of C.P. ⇒ 130% of x – 120% of x = 8 ⇒ 10% of x = 8 ⇒ 10/100 × x = 8 ⇒ x = 80 Original C.P. of 16 article = 16x ⇒ Required C.P. = 16 × 80 ⇒ Required C.P. = Rs. 1280 ∴ The original cost price of 16 such articles is Rs. 1280
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