CAT Questions

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Kohinoor diamond was produced from one of the mines in Golconda.

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Law of Octaves states that "If the chemical elements are arranged according to increasing atomic weight, those with similar physical and chemical properties occur after each interval of seven elements." That is every 8th element have the same physical and chemical properties. This was established by the British scientist John Newlands in the year 1865.

Sad means being unhappy, sorrowful, mournful, wistful,...

Hence, Somber means cheerless i.e, unhappy which is synonym of sad. All other options are opposites of Sad.

50.003% of 99.8 ÷ 49.988 = ?

? ~= (50 x 100/100)/50

? ~= (50 x 100)/(100 x 50)

? ~= 1