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8 January, 16:40

A stack of boards is 21 inches high. Each board is 1 3/2 inches thick. How many boards are there?

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  1. 8 January, 16:43
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    If the stack is 21ins and each board is 1 3/2 ins thick that means you 21 / (1 3/2) so you end up getting 8.4. Because you can't have a part of a board you round the number down to 8 boards.
  2. 8 January, 16:44
    0
    There is about 8.4 board but you can't round it
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