trincorc3 trincorc3

18-02-2018
Mathematics

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A rocket is divided into three sections. The top section is one sixth the length of the bottom section. The middle section is one half the length of the bottom section. The total length of the rocket is 240ft. Find the length of the top section

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sqdancefan sqdancefan

18-02-2018

The lengths are in the proportion
.. top : middle : bottom = 1 : 3 : 6
The top section is 1/(1 +3 +6) = 1/10 of the overall length, hence 24 ft.

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