Practice question
Question
A pea when soaked in water, gains about 40% by weight and 20% by volume. By what factor does the density increase?
Explanation
Density equals mass divided by volume. After soaking, mass becomes 1.4 times original, volume becomes 1.2 times. Ratio 1.4/1.2 equals 1.1667, approximately 1.16. Hence pea density increases by factor 1.16, not proportionally to mass gain alone due to simultaneous swelling.
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