homework functions probability

Question

If there are 4 movies, all starting at 8:30, running continually throughout the day. One movie is 3 mins long, one is 18 mins, another is 24 mins. and the fourth is 12 mins. What is the next time (after 8:30) that all 4 movies will be starting at the same time?

I don't see probability involved here. Anyway, what have you tried? Have you some guess? — leonbloy, Oct 04 '12 at 14:53

score 1 · Answer 1 · answered Oct 04 '12 at 15:06

1

Least common multiple(3,18,24,12) + 8:30 (minutes in modulo 60)

answered Oct 04 '12 at 15:06

Berci

90,745

score 0 · Answer 2 · answered May 08 '13 at 08:20

0

Seconding the answer given by @Berci, at 9:42 all movies would start at the same time. This will happen a lot of times, but 9:42 is the next immediate time when they would start at the same time.

answered May 08 '13 at 08:20

Saad

1

homework functions probability

2 Answers2