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Mathematics for IGCSE & O level - Rates (Section 1 - No. 8)

A foam plastic ball with a volume of 20 cm³ has a density of 0.3 g/cm³. What is its mass?
6 g
7 g
8 g
9 g

Forklaring

Mass = Density x Volume, hence 0.3 g/cm³ * 20 cm³ = 6g

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