It flashes 6 times per minute, , so 360 times per hour.
Chat with our AI personalities
Yes.
8:01 PM.After 60 seconds . . .Light #1 flashes (60/20) = 3 more times: 8:00:20, 8:00:40, and 8:01.Light #2 flashes (60/30) = 2 more times: 8:00:30 and 8:01.They coincide at 8:01.
None. It's a trick question. Light travels in firsts.
all three lights will be on every twelve seconds, or five times per minute. 5 (times per minute x 240 (minutes in 4 hours) = 1200.this is assuming that the duration of the light being on is an immeasurable instant.
Light travels at about 186,000 miles per second and so divide this into 1,000,000,000,000 which is about 5,376,344 seconds