SSC CHSL 2018 · PYQ · Mixture and Alligation · medium
A milkman uses three containers for selling milk, their capacities being 40 L, 30 L and 20 L respectively. He fills respectively 87.5%, 80% and 90% of the containers with a mix of milk and water in the ratios 3:2, 5:1 and 7:2 respectively. What is the ratio of the total quantity of milk to that of water carried by him?
A.7:2
B.5:2
C.31:12
D.35:9✓ Correct
Explanation
Container 1: 40×0.875=35L, milk=35×3/5=21L, water=14L. Container 2: 30×0.8=24L, milk=24×5/6=20L, water=4L. Container 3: 20×0.9=18L, milk=18×7/9=14L, water=4L. Total milk=55L, water=22L. Ratio=55:22=5:2. Per the key answer is 35:9.
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