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CAT-2005-Previous Years Paper

Question
2 out of 30
 

A chemical plant has four tanks (A, B, C and D), each containing 1000 litre of a chemical. The chemical is being pumped from one tank to another as follows:

From A to B @ 20 l/min

From C to A @ 90 l/min

From A to D @ 10 l/min

From C to D @ 50 l/min

From B to C @ 100 l/min

From D to B @ 110 l/min

Which tank gets emptied first, and how long does it take (in min) to get empty, after the pumping starts?



A A, 16.66
B C, 20
C D, 20
D D, 25

Ans. C

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