Priscilla Ng's answer to Beatrice's Primary 6 Maths Measurement Singapore question.

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Priscilla Ng
Priscilla Ng's answer
806 answers (Tutor Details)
1st
100% --> 10 units

Calvin and Dave together --> 5 units
Hence, Andy and Benny together --> the other 5 units

Benny's number represented by the pink area which is less than Calvin's 3 unit by 80. The rest will be for Andy.