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2 November, 11:14

The science department buys microscopes every 5 years, safety goggles every 4 years, and test tubes every 2 years. They bought all three items this year. In how many years will they have to buy all three items again.

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  1. 2 November, 11:20
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    In 20 years they will buy all three items again
  2. 2 November, 11:27
    0
    11 because I have to add all the years/number up
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