Question

Water is flowing at the rate of 5 km/hr through a pipe of diameter 14 cm into a rectangular tank of dimension 50m*44m.Find the time in which yhe level of water in the tank will rise by 7 cm

Answer 1

$distence \: covered \: in \: pipe \: in \: 1 \: hour = 5km =5000m \\ volume \: of \:water \: pipe \: in \: t \: hours = volume \: of \: tank \\ pi \times .07 \times .07 \times 5000 \times t= 44 \times 50 \times .07 \\ t = \frac{44 \times 50 \times .07}{\pi \times .07 \times .07 \times 5000} \\ t = \frac{44 \times 7}{22 \times 7} \\ t = 2hours$