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20. Two solids A and B float in water. It is observed that A floats with 1/2 of its body immersed in water and B floats with 1/4 of its volume above the water level. The ratio of the density of A to that of B is

(a)    4 : 3                                                     (b)    2 : 3

(c)   3 : 4                                                     (d)   1 : 2

Answer-b

(6)

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