Pipes & Cisterns Mcqs

Q.  Two pipes function simultaneously the reservoir will be filled in 12 hours. One pipe fills reservoir 10 hours faster than the other. How many hours does the faster pipe take to fill the reservoir?

a. 25 hrs
b. 28 hrs
c. 20 hrs
d. 35 hrs


ANSWER: See Answer
 
1/x + 1/(x + 10) = 1/12

x = 20
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