Question

The speed limit in Canada is 100km/hr. What is the value of this limit in mi/hr given 1mi = 1.609km?

Answer 1

62.14 miles per hour

Answer: 100 km/h is equal to 62.14 mph

So, 100 km/h is equal to 62.14 miles per hour.

Answer 2

62.15 mi/hr

Explanation:

Given:

• 1 mile = 1.609 km

As both speed limits are given "per hour", we only need to convert 100 km to miles. To do this, set up and solve a ratio for "miles to kilometers", where x is the number of miles to 100 km:

`\implies \sf 1 : 1.609 = x : 100`

`\implies \sf (1)/(1.609) = (x)/(100)`

`\implies \sf (1)/(1.609) \cdot 100= x`

`\implies \sf x= (100)/(1.609)`

`\implies \sf x= 62.15040398...`

Therefore, 100 km/hr = 62.15 mi/hr (2 d.p.)