Christmas MT's answer to Chia Boon's Primary 4 Maths question.
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Word format:
Since 3 tables = 4 Chairs and 1 table = 1 chair + 2kg.
From 1 table = 1 chair + 2kg:
3 tables = 3 chairs + 6 kg
Comparing the equations with 3 chairs,
4 chairs = 3 chairs + 6kg.
We therefore know that 1 chair = 6kg.
4 chairs= 24kg
Comparing with 3 tables, 24kg \ 3 tables= 8kg
That is the mass of a table.
Since 3 tables = 4 Chairs and 1 table = 1 chair + 2kg.
From 1 table = 1 chair + 2kg:
3 tables = 3 chairs + 6 kg
Comparing the equations with 3 chairs,
4 chairs = 3 chairs + 6kg.
We therefore know that 1 chair = 6kg.
4 chairs= 24kg
Comparing with 3 tables, 24kg \ 3 tables= 8kg
That is the mass of a table.
Date Posted:
6 years ago
Thanks!
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