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A density bottle weighs 120 g and 100 g ...

A density bottle weighs 120 g and 100 g when filled completely with oil ad water, respectively. If the weight of a empty density bottle is 40g, then arrange the following steps in sequence meant to solve the problem to get the density of oil
(A). The density of the oil
`D=("Mass of the oil")/("Weight of the water")=("Mass of the oil")/("Mass of the water")`
`=("Weighht of oil")/("Weight of the water")=(W_(3)-W_(1))/(W_(2)-W_(1))`
(B). Let the weight of the bottle +oil=`W_(3)=120g`
and the weight of the bottle+water =`W_(2)`
100g, where bottle is completely filled with liquid, i.e., oil or water.
(C). Let the weight of the empty bottle`=W_(1)=40g`
(D). The the weight of the oil ad water would be equal to `(W_(3)-W_(1)) and (W_(2)-W_(1))`, respectively.

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