Let x, y be the volumes. m, n be the masses of two metallic cubes P an – McqOptions

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1.	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?
A.	u = 4v
B.	u = 2v
C.	v = u
D.	v = 4u
Answer» B. u = 2v

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