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_
X34
Y _
Z 30
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Question : 118 of 200
 
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When the tank was completely empty, inlets A, D and E were opened for one hour each and then closed. If after that outlet Z was opened, how much time (in hours) will it take to empty the tank completely?
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