With the motor running, the overhead tank in Kavita's house fills in 5 hours. After 2 hours of pumping into the empty tank, what part of it is still empty?
Competition practicePipes & Cisterns
A32
B31
C53
D52
Step-by-Step Solution
In 2 hours the motor fills 52, so 1−52=53 is still empty.(52 is the filled part.)
Answer: C) 53
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