1.

6 pipes can fill a tank in 30 minutes. One pipe can fill in a)6 mins b) 60 minutes c)15 MINUTES d)180 minutes e) Other

Answer»

ong>Answer:

Part of tank filled by all THREE pipes in 1 minute

= 130+145−160=6+4−3180

= 7180

= ∴Timetaken=1807minutes

= 1807×60=37hour



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