A) 117.7 gallons
B) 107.2 gallons
C) 115.7 gallons
D) 117.2 gallons
Correct Answer: C
Solution :
Work done by the waste pipe in 1 minute \[=\frac{1}{15}\left( \frac{1}{18}+\frac{1}{27} \right)=\left( \frac{1}{15}\,\,\,\,\frac{5}{54} \right)=\frac{7}{270}\] (\[-\] sign means emptying ) Volume of \[\frac{7}{270}\] part = 3 gallons Volume of whole \[=\left( 3\,\,\,\frac{270}{7} \right)\] gallons \[=115.7\] gallons.You need to login to perform this action.
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