alleryఒక పైపు ఒక్కటే ఒక ట్యాంక్ను 15 నిమిషాల్లో నింపుతుంది; రెండవ పైపుతో కలిపి దానికి 6 నిమిషాలు పడుతుంది. రెండవ పైపు ఒక్కదానికే పట్టే సమయం
A10 నిమిషాలు
B12 నిమిషాలు
C8 నిమిషాలు
D9 నిమిషాలు
Answer & Solution
Correct answer: A. 10 నిమిషాలు
రెండవ పైపు రేటు 1/6 - 1/15 = 3/30 = 1/10, కాబట్టి 10 నిమిషాలు.
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