Pipes and Cistern - Quantitative Aptitude (MCQ) questions for Q. 28177

Q.  Two pipes M and N can fill a tank in 22 hours and 33 hours respectively. In how much time will the tank be full, if both the pipes are opened simultaneously?
- Published on 07 Jul 17

a. 18 hours
b. 19/22 hours
c. 1(1/11) hours
d. 13(1/5) hours

ANSWER: 13(1/5) hours
 
pipes and cisterns

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