Question

A car travels 60km in 30 minutes. In how much time will it cover 100 km?

Answer 1

Unitary method:

a car travels 60 km in 30 minutes

1 km ---------> 30÷60 = 1/2 minutes

100 KM ------> 1÷2×100 = 50 minutes

Answer 2

About 40 Minutes, Or something close to that

Explanation:

The car covers 60 km in 90 minutes or its speed = 60 km*60/90 min = 40 km/hr . So to cover 100 km at the same speed it will take 100/40 = 40 Min