Question

A car travels 45km in 1/2 hour.how long will it take to travel 180 km​

Answer 1

45km : 30 min = 180km : x

x =
`(180*30)/(45)` =
`(180*2)/(3)` = 60*2 min = 120 min = 2h

Answer 2

120 minutes or 2 hours

Explanation:

We know that it takes a car 30 minutes to travel 45 km so

30 m : 45 km

? m : 180 km

180 ÷ 45 = 4

30 × 4 = 120