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An object 'X' of volume 200 cm^(3) and a...

An object 'X' of volume 200 cm^(3) and another object Y of volume 250 cm^(3), when placed on the two pans of a common balance they balance each other. Determine the ratio of density of X and density Y

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As X and Y balance each other when placed on the two pans of the common balance they both have equal masses.
density=mass/volume
`(dx)/(dy) = ( (m_x)/(V_x) )/((m_x)/(V_y)) = (V_y)/(V_x) ("since " m_x = m_y) = 250/200 = 5/4`
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