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Quantitative Aptitude
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A room 18 metres and 42 cm long and 15 metres and 35 cm wide, is to be paved with minimum number of square tiles. The number of tiles needed is
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A
30
💡 Explanation:
It is correct answer.Solution:Maximum size of square tile = HCF of 15.35 and 18.42 = 3.07No. of tiles = (18.42 * 15.35)/(3.07 * 3.07) = 30