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 : 116 of 200
 
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116.When the tank was completely full, outlets X and Z were opened together for ‘H’ hours. Had outlet Z been open alone, it would have taken ‘H + 10’ hours to empty the same quantity of water from the tank. What is the value of ‘H’ ?
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