Question

A red light flashes every 32 minutes. A blue light flashes every 24 minutes. when will the two lights flash together again if they last flash together at 10:00 am

Answer 1

Red: (everything is +32)
• 10 am
• 10:32 am
• 11:04 am
• 11:36 am

Blue: (everything is +24)
• 10 am
• 10:24 am
• 10:48 am
• 11:12 am
• 11:36 am

The answer is 11:36 am