3 years ago

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

1 answer:

Elena-2011 [213]3 years ago

5 0

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.

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