Mixture and Alligation

Quantitative Aptitude ( CCS)

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How much milk (in litres) costing Rs 50 per litres should be mixed with 18 litres of milk costing Rs 56 per litres so that there is a profit of 25% on selling the mixture at Rs 65 per litres?

25 l

32 l

17 l

36 l

Explanation:

Solution:
CP of mixture = 100/125 * 65 = Rs 52
Let x l of milk to be mixed. So by method of allegation:
(x)……………..…..(18)
50…………………..56
………….52
4……………………..2
So x/18 = 4/2
x = 36 l

By: Pranav Gupta

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