After two successive discounts of 15% and 10%, an article is sold for Rs 642.60. What is the marked price of the article?
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → Rs 840
Successive discounts multiply: after 15% off the buyer pays 0.85 of the marked price, and after a further 10% off he pays 0.9 of that.
Price paid \(=0.85\times0.9=0.765\) of the marked price
\(0.765\times\text{Marked price}=642.60\)
\(\displaystyle \text{Marked price}=\frac{642.60}{0.765}=\) Rs 840
The marked price is Rs 840.