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I managed to get to the age I am and I only just discovered....

  • 19-01-2022 06:24PM
    #1
    Registered Users, Registered Users 2, Paid Member Posts: 30,802 ✭✭✭✭


    That you can reverse percentages. So that 25% of 80 is the same as 80% of 25, but one is easier to do in your head.

    Did you lately discover any bits of valuable knowledge that you should have known all along?



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