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RBI Grade B Officers 2017 jun Paper

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Directions (114–118) : Study the following graph and table to answer the given questions.

This table depicts the number of hours taken by each outlet alone toempty the full tank ‘T’

Outlets	Number of hours
W	_
X	34
Y	_
Z	30

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Question : 115 of 200

Marks: +1, -0

When the tank was completely full, outlets X and Y were opened together for 8 hours 30 minutes. Both were then closed and inlet A was opened which filled the tank completely in 3 hours 30 minutes. In how much time (in hours) will outlet Y alone empty the full tank?

15 hours
13.6 hours
13 hours
14 hours
15.5 hours

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