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Nimfa-mama [501]

2 years ago

8

light a flashes every 5 seconds Light b flashes every 6 seconds light c flashes every 7 seconds work out how long it will take f

or all of them to flash

1 answer:

Svet_ta [14]2 years ago

8 0

Answer:

210 seconds

Step-by-step explanation:

LCM of 5,6 and 7

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