Question

In an athletics match the 100m was won in a time of 9.91secs. What was his average speed.

Answer not important, rather the workings.

Answer 1

Average speed = (total distance covered( / (total time taken), and it will, be in metres per second...

Answer 2

so 100/9.91 * 60

Answer 3

What is the 60 for? :-)

Answer 4

1 min

Answer 5

What units do you need the answer in?

Answer 6

sec

Answer 7

OK, well he has gone 100m in 9.91 seconds. So you don't need the 60 because you are already in seconds.

Answer 8

so its just 100/9.91

Answer 9

That's it! Well done.

Answer 10

great thanks