Two cubes have their volumes in the ratio 27 : 64. The ratio of their surface areas is ?->(Show Answer!)

1. Two cubes have their volumes in the ratio 27 : 64. The ratio of their surface areas is

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By: anil on 05 May 2019 01.54 am

let the side of 1st cube and 2nd cube be a unit and b unit respectively now volume of a cube = $$side^3$$ total surface area of cube = 6$$side^2$$ given that : $$frac{a^3}{b^3} = frac{27}{64}$$ $$frac{a}{b} = frac{3}{4}$$ Now we can say that $$frac{6a^2}{6b^2} = frac{9}{16}$$

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MCQ-> Read the passage carefully and answer the questions given at the end of each passage:We now come to the second part of our journey under the sea. The first ended with the moving scene in the coral cemetery which left a deep impression on my mind. I could no longer content myself with the theory which satisfied Conseil. That worthy fellow persisted in seeing in the Commander of the Nautilus one of those unknown servants who returns mankind contempt for indifference. For him, he was a misunderstood genius who, tired of earth’s deceptions, had taken refuge in this inaccessible medium, where he might follow his instincts freely. To my mind, this explains but one side of Captain Nemo’s character. 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