Question

A red light flashes every 6 seconds. A yellow light flashes every 4 seconds. They both flash at the same time. After how many seconds will they both flash next at the same time?

Answer 1

Answer:12 seconds later the both light will flash together .

you have to count the LCM . The LCMs will be the next times when the both lights will flash together.

such as 12,24,36,48,60,72,84,96,108,120 ...........

Please mark me as the Brainliest

Answer 2

Answer:

After 12 seconds.

Step-by-step explanation:

Flash of red light = every 6 seconds

Flash of yellow light= every 4 seconds

Time they will both flash together= ?

6= 6,12, 18, 24, 30,36

4= 4,8,12,16,20

Therefore they will flash together after 12 seconds.