Question

The pedestrian runs at 4 km / h. Each step is 62.5 cm long. How many steps will the walk take in 15 minutes?

Answer 1

`Speed\text{ = }(distance)/(time)`
`\begin{gathered} Speed\text{ =4km/h} \\ Time=15minutes=(15)/(60)=(1)/(4)=0.25hour \end{gathered}`
`\begin{gathered} 4=(Distance)/(0.25) \\ \\ Distance=\text{ 4}*0.25 \\ Distance=\text{ 1km} \end{gathered}`

1km is 100, 000cm

`(100,000)/(62.5)=1600`

The final answer

1,600 steps