Mathematics · Time and Work
नल A और B एक टैंक को क्रमशः 4 घंटे और 6 घंटे में भर सकते हैं। नल C उसी टैंक को 12 घंटे में खाली कर सकता है। यदि तीनों नल एक साथ खोल दिए जाएं, तो टैंक को भरने में कितना समय लगेगा?
- 13.5 घंटे
- 23 घंटे✓
- 35.5 घंटे
- 45 घंटे
सही उत्तर देखें
3 घंटे
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