CAT 2021 Time and Work Question (Hard)

Question

Two pipes A and B are attached to an empty water tank. Pipe A fills the tank while pipe B drains it. If pipe A is opened at 2 pm and pipe B is opened at 3 pm, then the tank becomes full at 10 pm. Instead, if pipe A is opened at 2 pm and pipe B is opened at 4 pm, then the tank becomes full at 6 pm. I

Optima Learn · Accepted Answer

Answer 144 minutes Step 1. Let pipe A s fill rate be tanks hour and pipe B s drain rate be tanks hour. Step 2. First scenario A at 2 pm, B at 3 pm, full at 10 pm A runs for 8 hours, B runs for 7 hours. Net work . i Step 3. Second scenario A at 2 pm, B at 4 pm, full at 6 pm A runs for 4 hours, B runs

CAT 2021 Time and Work — Previous Year Question

CAT 2021

Quantitative

Time and Work

Hard

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