Question

Ali was reviewing his family video. the tape totaled 2 hours and 37 minutes. video of his children totaled 72 minutes. how much of the video was not of his children?

Answer 1

2 hours and 37 minutes is 2x60+37 = 157 minutes so to get the answer subtract
157-72=85 so there was not 85 minutes or 1 hour and 25 minutes of childrens video

Answer 2

The part of the video that was not of his children is:

85 minutes OR 1 hour and 25 minutes.

Explanation:

It is given that:

Ali was reviewing his family video.

The tape totaled 2 hours and 37 minutes.

Now we know that:

1 hour=60 minutes

This means that:

2 hours=2×60 minutes

i.e.

2 hours= 120 minutes

Hence, 2 hours and 37 minutes= 120+37 minutes

i.e.

2 hours and 37 minutes= 157 minutes.

Video of his children totaled 72 minutes.

This means that the part of the video not of his children is:

Total time of video-Time of video of his children

= 157-72

= 85 minutes or 1 hour and 25 minutes