Mathematics, 25.01.2021 07:20 codycoker4200

I almost cry please help. Q:Two signs are on a street. One blinks every 10 s and the other every 6 s. How many times per minute do they blink together? (The answer is twice and why please show how you find out the answer is twice)

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I almost cry please help. Q:Two signs are on a street. One blinks every 10 s and the other every 6 s...