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Primary 4 | Maths
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Celine
Celine

Primary 4 chevron_right Maths chevron_right Singapore

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Date Posted: 2 weeks ago
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Jasmine
Jasmine's answer
2 answers (A Helpful Person)
1st
Understand that every time you switch a car to a motorcycle, there will be a decrease of 2 wheels in total number of wheels (as reflected in finding difference in wheels for cars and motorcycles).

With 100/2=50, you know that you need to "switch out" a car to a motorcycle 50 times in order to make the total wheels 620.

Therefore, there are 50 motorcycles.