Mathematics · Pipes and Cisterns
पाइप A एक टैंक को 735 मिनट में भर सकता है और पाइप B उसी टैंक को 1470 मिनट में भर सकता है। यदि दोनों पाइपों को एक साथ खोल दिया जाए, तो खाली टैंक को भरने में कितने मिनट का समय लगेगा?
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