Let x, y be the volumes. m, n be the masses of two metallic

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Let x, y be the volumes. m, n be the masses of two metallic cubes P and Q respectively. Each side of Q is two times that of P and the mass of Q is two times that of P. Let u = m/x and v = n/y. Which one of the following is correct?

[Prelims 2020: CSAT Official Paper]

u = 4v

u = 2v

v = u

v = 4u

EXPLANATION

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