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Mathematics, 03.05.2020 13:32 jaici68

A crane has a cable with a breaking strain of 6400 kg
measured to 2 significant figures.
It is used to lift crates which weigh 90 kg measured to the nearest 10 kg.
What is the greatest number of crates that can safely be lifted
at one time without breaking the cable?
Some working must be shown.

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A crane has a cable with a breaking strain of 6400 kg
measured to 2 significant figures.
...

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