alleryपाईप P हा पाईप Q पेक्षा तिप्पट वेगवान आहे आणि दोन्ही मिळून एक टाकी 12 मिनिटांत भरतात. एकट्या Q ला लागणारा वेळ:
A36 मिनिटे
B48 मिनिटे
C42 मिनिटे
D60 मिनिटे
Answer & Solution
Correct answer: B. 48 मिनिटे
3x आणि x हे दर 4x = 1/12 देतात, म्हणून x = 1/48 आणि एकट्या Q ला 48 मिनिटे लागतात.
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