Question

10. Duck Mountain Provincial Park is on the boundary of Saskatchewan

and Manitoba. To visit the sites, Nathan's family drove 6.8 km, 9.8 km,
20.3 km, and 46.8 km. If they drove for 4.5 h, what was their average
speed?

Answer 1

Average speed is 18.6 kilometer per hour

Solution:

Given that,

To visit the sites, Nathan's family drove 6.8 km, 9.8 km, 20.3 km, and 46.8 km

They drove for 4.5 hour

To find: average speed

The average speed is given by formula:

`\text{ Average speed } = \frac{\text{ total distance }}{\text{ total time taken }}`

Here, total distance = 6.8 + 9.8 + 20.3 + 46.8 = 83.7 km

Total time taken = 4.5 hour

Substituting the values in formula,

`\text{ Average speed } = (83.7)/(4.5) = 18.6`

Thus average speed is 18.6 kilometer per hour