Q.If both the supply and waste pipe are opened together, then a full tank can be emptied in 24 hours. But if only the waste pipe is opened then the full tank can be emptied in 8 hours. In how many hours can be empty tank be filled only by the supply pipe?
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Answer:
ANSWER = 16 HRS
Step-by-Step Explanation:
IF BOTH THE SUPPLY PIPE AND WASTE PIPE ARE OPENED, THEN A FULL TANK CAN BE EMPTIED IN
= 24 HRS
IF ONLY THE WASTE PIPE IS OPENED, THEN FULL TANK CAN BE EMPTIED IN = 8 HRS
IF ONLY THE SUPPLY PIPE IS OPENED, THEN FULL TANK CAN BE EMPTIED IN =
TIME USED TO EMPTY THE TANK BY BOTH PIPES
- TIME USED TO EMPTY THE TANK BY WASTE PIPE
= (24-8)HRS = 16 HRS
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