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A pipe can empty a tank in 40 minutes. A second pipe with diameter twice as much as that of the first is also attached with the tank to empty it . The two pipe together can empty the tank in:
5Q:
A pipe can empty a tank in 40 minutes. A second pipe with diameter twice as much as that of the first is also attached with the tank to empty it . The two pipe together can empty the tank in:
- 18 minutestrue
- 213 minutesfalse
- 330 minutesfalse
- 438 minutesfalse
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