Cheryl Lim's answer to Winzky Tay's Primary 4 Maths question.
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Use model units to represent boys and girls. Since boys are 1/5 of girls, boys will be 1 unit and girls will be 5 units. Total children are 6 units.
There are total of 6 units representing children. As adults are 2/3 of children, convert 2/3 into 4/6. So 6 units will represent children and 4 units represent adults.
There are total of 6 units representing children. As adults are 2/3 of children, convert 2/3 into 4/6. So 6 units will represent children and 4 units represent adults.
Date Posted:
6 years ago
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