A body's weight 75g in air 70.5g in water and 66g in a liquid . Calculate the R.D of the liquid.

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Solution

Just follow this method,this is easier.
Given W₁ = 75g;
W₂ = 70.5g;
W₃ = 66g

W₁-W₂→Weight of water
W₁-W₃→Weight of liquid

R.D → Weight of liquid/Weight of water
= (75g - 66g)/(75g - 70.5g)
= 9g/4.5g
= 2

Therefore R.D of liquid is 2

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