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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.
But 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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