Question

Thomas leaves Killough at 4:28pm as he walks to the home 2 km away. He stops by Joshua’s house on the way and plays the Xbox for 40 minutes. He arrived at home at 6:28pm. What was Thomas' total average speed for his walk home from school?

Answer 1

Answer:

Average speed of Tomas for his walk home from school was 1.2 km/hr.

Step-by-step explanation:

Given:

Total Distance from school to home = 2 km

time at which he left Killough = 4:28 pm

time he reached home = 6:48 pm

Time interval he played X box at Joshua's house =40 mins.

We need to find the total average speed for his walk home from school.

Solution:

Time Spent on Journey

4:28 pm + 6:48 pm = 2 hours and 20 mins.

Time played X box at Joshua's house = 40 minutes.

So we will reduce the time played X box at Joshua's house from the time spent on Journey.

2 hours and 20 mins - 40 mins = 1 hour and 40 mins.

40 mins = $\frac{40}{60} = 0.67\ hrs$

1 hours and 40 mins  = $1+0.67= 1.67\ hrs$

Hence Total Time spent on journey = 1.67 hrs.

Distance traveled = 2 Km

Now we know that Average Speed is equal to Total Distance divided by Total time taken to travel the distance.

framing in equation form we get;

Average speed = $\frac{2}{1.67}=1.2\ km/hr$

Hence Average speed of Tomas for his walk home from school was 1.2 km/hr.