Latest ongc Aptitude Question SOLUTION: Two pipes A and B can fill a tank in 10 and 20 minutes respectively.If both pipes are opened simultaneously,after how many minutes should pipe B be closed so that the tank is full

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(#M40037666) ONGC Numerical Ability question ONGC Keep an EYE

Two pipes A and B can fill a tank in 10 and 20 minutes respectively.If both pipes are opened simultaneously,after how many minutes should pipe B be closed so that the tank is full in 8 minutes?
A. 3 min
B. 4 min
C. 2 min
D.5 min

Asked In ongc vinodh kumar (9 years ago)

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