Question 1132750
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Total mass = 19.3*20 + 10.5*10 = 491 gram.


The density = {{{Total_mass/Total_volume}}} = {{{491/(20+10)}}} = {{{491/30}}} = 16.367 gram per centimeter cubic = 16.367 g/cm^3.    <U>ANSWER</U>
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Solved.