Core Mathematics - The gears video
The gears video
GEAR RATIOS SUMMARY:
Gear ratios are an example of INVERSE PROPORTION. This means that, as one
quantity increases, the other quantity decreases.
Road racing cyclists change gears to suit the conditions:
* pedalling faster in lower gears but going slower up hills or
* pedalling slower in higher gears but going faster down hills.
As this problem involves inverse proportion, the rule becomes:
View the gears video.
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