Question

9

Tom and Adil are the two runners in a 200-metre race.
Tom completes the race in 24 seconds.
Adil completes the race at an average speed of 28.8 kilometres per hour.
Who wins the race?
You must show your working.
[3

Answer 1

Since Adil takes 25 seconds to complete the race, and Tom takes 24 seconds, Tom wins the race.

Explanation:

To determine who wins the race, we need to first convert the given information into comparable units. The speed of Adil is given in kilometers per hour, while the time taken by Tom to complete the race is given in seconds. We can convert Adil's speed to meters per second by dividing by 3.6:

28.8 km/hr = 28.8 km/hr * (1 hour / 3600 seconds) * (1000 meters / 1 km)

= 8 meters/second

We can then use this value to find the time it takes Adil to complete the race:

time = distance / speed

= 200 meters / 8 meters/second

= 25 seconds

Since Adil takes 25 seconds to complete the race, and Tom takes 24 seconds, Tom wins the race.