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Answers (2)
W(air) - W(liq.) = R.D.*VOL. 80-50=1.5 * V => 30/1.5=V =20cm3 . R.D.(solid) = 50/20 = 2.5
W(air) - W(liquid) = R.D. * VOLUME 400 - 320 = 0.80 * V V = 80/0.80 => 100 cm3
