B is closed. How long will it take to fill the tank? (a)15 min   (b) 16 min  (c) 10 min  (d) 12 min किसी टंकी को एक पम्प 3 घंटे में भर सकता है

 
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Pipes & Cisterns ( पाइप तथा टंकी ) – Part 8

August 2, 2018

दो पाइप A तथा B एक टंकी को क्रमशः 20 मिनट तथा 25 मिनट में भर सकते हैं । दोनों पाइपों को एक साथ चालू किया जाता है , लेकिन 5 मिनट पश्चात B को बंद कर दिया जाता है । टंकी को भरने में कितना समय लगेगा ? Two pipes A and B can fill a tank in 20 minutes and 25 minutes, respectively. Both pipes are turned on together, but after 5 minutes, B is closed. How long will it take to fill the tank? (a)15 min   (b)View Page