Question

Harry catches the train from Belfast to Dublin at 4pm. The average speed of the train is 70 mph and the distance between Belfast and Dublin is 105 miles. What time does Harry arrive in Dublin?

Answer 1

`Arrival\ Time = 5:30\ pm`

Explanation:

Given

`Current\ Time = 4pm`

`Speed = 70mph`

`Distance = 105miles`

Required

Determine the arrival time

First, we calculate the time taken from Belfast to Dublin using:

`Speed = (Distance)/(Time)`

Substitute values to the expression.

`70 = (105)/(Time)`

Cross Multiply

`70 * Time = 105`

`Time = (105)/(70)`

`Time = 1.5\ hour`

Arrival time is then calculated as:

`Arrival\ Time = Current\ Time + Time\ Taken`

`Arrival\ Time = 4pm + 1.5\ hour`

`Arrival\ Time = 5:30\ pm`