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    htip2004's Avatar
    htip2004 Posts: 1, Reputation: 1
    New Member

    Oct 5, 2015, 02:44 PM
    Unit test
    "Sam" and "Martha" are the local names for two lighthouses that guard a particularly dangerous part of the coast. Sam blinks every 12 seconds, and Martha blinks every 8 seconds.They blinks together at midnight. How many seconds will pass before they blink together again?
    smoothy's Avatar
    smoothy Posts: 25,495, Reputation: 2853
    Uber Member

    Oct 5, 2015, 02:49 PM
    This is your homework... what do you think the answer is and how did you arrive at it?
    Alty's Avatar
    Alty Posts: 28,318, Reputation: 5972
    Pets Expert

    Oct 5, 2015, 04:33 PM
    What equation would you use to solve this?

    Post that first, and then we can go from there.

    We won't give you the answer, it's against our policy, and won't teach you anything. So lets start by you figuring out the equation you'd need to figure this out. Think it through, post back, and we'll go from there.

    I don't envy you, I hate math! :)
    ma0641's Avatar
    ma0641 Posts: 15,681, Reputation: 1012
    Uber Member

    Oct 6, 2015, 02:20 PM
    Midnight means nothing. Look for a common denominator. What is the ratio of 8:12? I did this in my head.

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