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Nine taps fill a tank in 4hrs. How many hours will 3 taps take
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4 votes
Nine taps
fill a tank in 4hrs.
How many hours will 3 taps take

User Rousseauo
by
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1 Answer

4 votes


\begin{array}{ccll} taps&hours\\ \cline{1-2} 9 & 4\\ 3& x \end{array} \implies \cfrac{9}{3}~~=~~\cfrac{4}{x}\implies 3=\cfrac{4}{x}\implies \stackrel{\textit{1 hour and 20 minutes}}{3x=4\implies x=\cfrac{4}{3}}

User Amleszk
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