Question

# The total price of 10 books is Rs. 120 while the average price of 8 of these books is Rs.11.75. Of the remaining two books, if the price of one book is 40% more than the price of the other, the price difference between these two books is nearly:

A

3.34

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B

4.34

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C

4.86

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D

4.75

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Solution

## The correct option is B 4.34 Total price of the two books = 120 - (11.75 x 8) = Rs. 26. Let the price of one of the books be Rs.x. Then, price of the other book is 1.4x. 2.4x = 26 ⟹ x = 10.83 Price of one book = Rs. 10.83 ∴ Price of the other book = 1.4x = 15.17. ∴ Price difference of these books = Rs.4.34.

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