Question

If I work from 4:30pm to 9:00pm how many hours did I work?

Answer 1

5 hours and 10 minutes.

Explanation:

9:00 minus 4:30 = 4:70.

4:70 = 5 hours and 10 minutes.

Answer 2

4 hours and 30 minutes.

Explanation:

You count, 4, 5, 6, 7, 8, then you take the 30 from 4:30 and add another 30 to it to make it five. 5+4=9 or 4.5 + 4.5=9. (In this case, 30 is half of an hour, hence the 4.5 instead of 4.3).