Mathematics · Work and Time
दो नल A और B एक खाली टंकी को स्वतंत्र रूप से क्रमशः 2 घंटे और 3 घंटे में भर सकते हैं। यदि दोनों नलों को एक साथ खोल दिया जाए, तो टंकी कितने मिनट में पूरी भर जाएगी?
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