118k views
4 votes
Sam blinks every 15 seconds and Martha blinks every 10 seconds. They blink together at midnight. How many seconds will pass before they blink together again

2 Answers

4 votes

Answer:

30 seconds will pass before they blink together again.

Explanation:

LCM of 15 & 10 is 30

User Taurayi
by
5.9k points
3 votes
they will blink together every 30 seconds.

User Iffat Fatima
by
5.9k points