Question

A car traveled 281 miles in 4 hours 41 minutes. What was the average speed of the car in cm per hour?

Answer 1

1 mile = 1609.344 m = 160934.4 cm
road = 281 miles

$time=4 h\ 41\ min=4\frac{41}{60}\ h=\frac{281}{60}\ h\\v=\frac{road}{time}=\frac{281}{\frac{281}{60}}=281\cdot\frac{60}{281}=60\ mile/h=60\cdot160934.4\ cm/h=9656064\ cm/h$