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Mathematics for IGCSE & O level - Rates (Section 2 - No. 10)

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

Forklaring

Mass = Density * Volume. Mass = 0.3 g/cm³ * 20 cm³ = 6 g

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