A librarian purchased 60 story books for his library. But he found that he could get 4 extra books by spending Rs 336 more and then the overall average price per book would be reduced by Re 1. The previous average price of each book was?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. Rs. 100
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Understanding |
Application |
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Previous average price of each book = Rs. x |
According to the question: 60x + 336 = 64 × (x – 1) ⇒ 64x – 60x = 336 + 64 ⇒ 4x = 400 ⇒ x = 100 Hence, Average price of each book = Rs. 100 |