Question
PSLE
The figure shows three boxes A, B and C on a balance scale. The average mass of the three boxes is 290 g. The mass of C is a 2-digit number. What is the largest possible difference between the mass of B and C?
3 m

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PSLE
The figure shows three boxes A, B and C on a balance scale. The average mass of the three boxes is 290 g. The mass of C is a 2-digit number. What is the largest possible difference between the mass of B and C?