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Pipes & Cisterns Mcqs
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Q. A cistern is normally filled in 8 hours but takes two hours longer to fill because of a leak in its bottom. If the cistern is full, the leak will empty it in?
a.
16 hrs
b.
20 hrs
c.
40 hrs
d.
25 hrs
ANSWER: 40 hrs
Answer & Explanation
1/8 – 1/x = 1/10
x = 40
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