TIEW KAI JIE NICHOLAS's answer to championnn's Primary 5 Maths Rate & Ratio Singapore question.
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Cost of chair to table is 2 : 7
Difference between the 2 ratios is the difference in cost.
7 - 2 = 5
Since table cost $300 more,
5 units = $300
1 unit = $60
2 unit = $120
Cost of a chair is $120
Cost of 2 chairs = 120 x 2 = $240
Difference between the 2 ratios is the difference in cost.
7 - 2 = 5
Since table cost $300 more,
5 units = $300
1 unit = $60
2 unit = $120
Cost of a chair is $120
Cost of 2 chairs = 120 x 2 = $240
Date Posted:
4 years ago
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