Mathematics · Time and Work
पाइप A अकेले एक खाली टंकी को 22 घंटे में भर सकता है और पाइप B अकेले उसी टंकी को 28 घंटे में भर सकता है। दोनों के एक साथ काम करने पर टंकी के आधे हिस्से को भरने में लगने वाला समय होगा:
- 13 425 घंटे
- 211 425 घंटे
- 36 425 घंटे✓
- 413 425 घंटे
सही उत्तर देखें
6 425 घंटे
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