\begin{array} { l } { \text { A cistern is normally filled in } 8 \text { hours; but takes } } \\ { \text { two hours more to fill because of a leak in its bot- } } \\ { \text { tom. If the cistern is full, the leak will make it } } \\ { \text { empty in } } \\ { \text { a) } 16 \text { hours } } & { \text { b) } 40 \text { hours } } \\ { \text { c) } 20 \text { hours } } & { \text { d) } 34 \text { hours } } \end{array}

\begin{array} { l } { \text { A cistern is normally filled in } 8 \tex

1.	\begin{array} { l } { \text { A cistern is normally filled in } 8 \text { hours; but takes } } \\ { \text { two hours more to fill because of a leak in its bot- } } \\ { \text { tom. If the cistern is full, the leak will make it } } \\ { \text { empty in } } \\ { \text { a) } 16 \text { hours } } & { \text { b) } 40 \text { hours } } \\ { \text { c) } 20 \text { hours } } & { \text { d) } 34 \text { hours } } \end{array}
Answer» option b is the answer