Latest self Aptitude Question SOLUTION: Two water pipes are used to fill a water tank. The first pipe alone can fill the tank in 7 hours, and the second pipe alone can fill the tank in 14 hours. If both pipes are used fo

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(#M40020146) SELF question Keep an EYE

Two water pipes are used to fill a water tank. The first pipe alone can fill the tank in 7 hours, and the second pipe alone can fill the tank in 14 hours. If both pipes are used for the first 4 hours, and then the first one is shut off, how long, in hours, will it take for the second pipe to finish the job ?

k.d.n padma rao (10 years ago)

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