A cistern is normally filled in 6 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?  Choose the correct choice:	A) 33	B) 88	C) 24	D) 99	E) 11
1/6 - 1/x = 1/8   x = 24   Answer: 24
<result>C</result>
A cistern is normally filled in 6 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?