Ratio and Proportion Practice Test 4

Question : 25 of 40

Marks: +1, -0

Three glasses P, Q and R with their capacities in the ratio 2 : 3 : 4 are filled with a mixture of spirit and water. The ratio of spirit to water in P, Q and R is 1 : 5, 3 : 5 and 5 : 7 respectively. If the contents of these glasses are mixed together, what is the ratio of spirit to water in the mixture?

14 : 27
23 : 47
25 : 47
None of these

Validate

Solution:

P : Q : R
2 : 3 : 4
Spirit : Water = 1 : 5, 3 : 5 and 5 : 7
When they are mixed, the ratio of spirit to water

(2×1/{1+5}+3×3/{3+5}+4×5/{5+7}):(2×5/{1+5}+3×5/{3+5}+4×7/{5+7})

=25:47

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