Lim Wei Lin's answer to Rsy's Primary 6 Maths Ratio Singapore question.
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Andy + Ben
= 76kg x 2
= 152kg
Ben + Cody
= 78kg x 2
= 156kg
Andy + Cody
= 74kg x 2
= 148kg
Add, Andy + Cody and Ben + Cody together:
Andy + Ben + 2U of Cody
= 156kg + 148kg
= 304kg
2U of Cody
= 304kg - 152kg
= 152kg
1U of Cody
= 152kg ÷ 2
= 76kg
Andy
= 148kg - 76kg
= 72kg
= 76kg x 2
= 152kg
Ben + Cody
= 78kg x 2
= 156kg
Andy + Cody
= 74kg x 2
= 148kg
Add, Andy + Cody and Ben + Cody together:
Andy + Ben + 2U of Cody
= 156kg + 148kg
= 304kg
2U of Cody
= 304kg - 152kg
= 152kg
1U of Cody
= 152kg ÷ 2
= 76kg
Andy
= 148kg - 76kg
= 72kg
Date Posted:
2 years ago
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