Mathematics

Problem

A circular garden hose has an inner radius of

0.009\,\text{m}

, and water moves through it at a uniform speed of

1.2\,\text{m}\,\text{s}^{-1}

. Approximately how long will it take to fill a

2{,}000\,\text{L}

backyard pool? a) About

220\,\text{min}

b) About

55\,\text{min}

c) About

110\,\text{min}

d) About

345\,\text{min}