Question

Which pair of times has the longest elapsed time between the two times?

3:05 to 9:40
8:35 a.m. to 2:35 p.m.
4:25 to 10:45
7:10 p.m. to 1:40 a.m.

What is the elapsed time between 9:30 p.m. and 2:15 a.m.?

7 hours and 45 minutes
5 hours and 15 minutes
4 hours and 45 minutes
4 hours and 15 minutes

Subtract 1 hour, 50 minutes from 4 hours, 10 minutes.

2 hours, 20 minutes
2 hours, 40 minutes
3 hours, 40 minutes
3 hours, 30 minutes

Answer 1

a) 9:40 -3:05 = 6:35 . . . . . the longest time interval
.. 14:35 -8:35 = 6:00
.. 10:45 -4:25 = 6:20
.. 13:40 -7:20 = 6:30


b) 14:15 -9:30 = 5:(-15) = 4:45 (3rd selection)

c) 4:10 -1:50 = 3:(-40) = 2:20 (1st selection)