Lim Kim Lian's answer to Lim YS's Primary 3 Maths question.

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Lim Kim Lian
Lim Kim Lian's answer
25 answers (Tutor Details)
A faster way to guess and check is to guess all 24 are cars and no motorcycles, then divide the extra by the the difference in number of wheels to get the number of motorcycles as 10.
Lim YS
Lim YS
6 years ago
Very good idea of using guess n check...thank you