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Difficulty—
Three hoses, \(x, y,\) and \(z,\) each pump water at a constant rate into a \(70,000\)-gallon tank. How long will it take the hoses to fill the tank up the \(30,000\)-gallon mark?
1. The \(3\) hoses working simultaneously can fill half the tank in \(5\) hours
2. Hose \(y\) pump water at half the rate of \(x\)
OA A
1. The \(3\) hoses working simultaneously can fill half the tank in \(5\) hours
2. Hose \(y\) pump water at half the rate of \(x\)
OA A
