the cistern is filled in 12 hours when two pipes are made to function simultaneously . if one pipe fills the cistern 10 hours faster than the other , in how much time will the second pipe fill the cistern ?
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3
Answer:
Always try to solve these question by options to save time.
total time taken by both pipe
=(x)×(x+10)(x+10)+x
Now take out one option and put it in place of 'x'
x = 20 (from option (a))
(20)×(20+10)(20+10)+(20)=20×3050=12hrs
It matches with question figure. Total time matches. So, the answer is 20 hrs
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0
Answer:
20 Hours second pipe fills cistern filled
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