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This is a class 7 ques If 2 pipes fill a tank in 2 and 3 hours respectively and if a 3rd pipe can empty the tank in 6 hours . The tank is empty at 4 pm and all the pipes are open together. When will the tank become full?

Posted by Kanishka Pal 6 years, 3 months ago

CBSE > Class 10 > Mathematics

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Posted by Kanika . 1 month ago

CBSE > Class 10 > Mathematics