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Thread: Word problems

  1. #1
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    Word problems

    Hi,

    I need these checked, please.

    1. A rectangular prism is made up of 4 layers of blocks. Each layer has 8 blocks and each block has a volume of $\displaystyle 1 \text{cm}^3$. What is the volume of the prism?

    $\displaystyle 4 \times 8 \times 1 = 32 \rm{cm}^3$

    => length x width x height

    2. Three and a half cakes were shared equally among 7 students. What portion of a cake did each student receive?

    $\displaystyle 3 \frac12 \div 7$

    $\displaystyle = \frac12$

    3. A truck can hold $\displaystyle \frac12$ kg of sand. How many similar trucks will together hold 5 kg of sand?

    $\displaystyle 5 \div \frac12$

    $\displaystyle = 10$
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  2. #2
    Super Member TheChaz's Avatar
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    Re: Word problems

    Quote Originally Posted by Hellbent View Post
    Hi,

    I need these checked, please.

    1. A rectangular prism is made up of 4 layers of blocks. Each layer has 8 blocks and each block has a volume of $\displaystyle 1 \text{cm}^3$. What is the volume of the prism?

    $\displaystyle 4 \times 8 \times 1 = 32 \rm{cm}^3$

    => length x width x height

    2. Three and a half cakes were shared equally among 7 students. What portion of a cake did each student receive?

    $\displaystyle 3 \frac12 \div 7$

    $\displaystyle = \frac12$

    3. A truck can hold $\displaystyle \frac12$ kg of sand. How many similar trucks will together hold 5 kg of sand?

    $\displaystyle 5 \div \frac12$

    $\displaystyle = 10$
    Good work!
    I might change the first method...

    Yes, Volume is L x W x H, but they don't give you ANY of those (at least not with the same/convertible unit throughout).

    You have (4 layers) x (8 blocks/layer) x (1cm^3/block), which is indeed 32 cm^3
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