Priscilla Ng's answer to TH's Primary 5 Maths Whole Numbers Singapore question.

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Priscilla Ng
Priscilla Ng's answer
788 answers (Tutor Details)
1st
Part (a) does not need to know the number of plates or bowls. Just take the group of plates as 1 object and the group of bowls as the other object in comparing cost.

Part (b) - each unit represents an equal number of plates or bowls. A number of bowls cost $27 more than an equal number of plates. Hence, we can find the number as one bowl cost $1.80 more than one plate.