General Studies · Pipe and Cistern
पाइप A एक टैंक को 4 घंटे में भर सकता है जबकि पाइप B उसे 6 घंटे में खाली कर सकता है। यदि खाली टैंक में दोनों पाइपों को एक साथ खोल दिया जाए, तो टैंक को पूरी तरह भरने में कितना समय लगेगा?
- 112 घंटे✓
- 210 घंटे
- 39 घंटे
- 48 घंटे
सही उत्तर देखें
12 घंटे
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