If a green light blinks every 4 seconds and a yellow light blinks every 5 seconds. When will both lights blink at the same time?

2 answers:

mixer [17]3 years ago

5 0

Answer:20 seconds

Step-by-step explanation:

4=4,8,12,16,20

5=5,10,15,20

4 0

Answer:

20 seconds

Step-by-step explanation:

i think this is right

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