Mathematics · Time and Work
एक भरने वाला पाइप एक टैंक को 9 घंटे में भर सकता है। एक खाली करने वाला पाइप पूरी तरह से भरे हुए टैंक को 63 घंटे में खाली कर सकता है। यदि दोनों पाइप एक साथ खोले जाते हैं, तो टैंक का 23 भाग कितने घंटों में भर जाएगा?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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