The average price of 10 box is Rs 12 while the average price of 8 of these box is Rs 11 75 Of the re...........

Quantitative Aptitude ( CCS) Average

The average price of 10 box is Rs. 12 while the average price of 8 of these box is Rs. 11.75. Of the remaining two box, if the price of one box is 60% more than the price of the other, what is the price of each of these two box?

Rs 10 and Rs 16

Rs 12 and Rs 18

Rs 10 and Rs 24

Rs 20 and Rs 16

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Explanation:

Solution:
Total price of the two books = Rs. [(12 x 10) – (11.75 x 8)]
= Rs. (120 – 94) = Rs. 26
Let the price of one book be Rs.x
Then, the price of other book = Rs. (x + 60% of x )
= x + (3/5)x= (8/5)x
=x +(8/5)x=26
=13x=26*5==> x=10
The prices of the two books are Rs. 10 and Rs. 16