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CTET Solved Paper MCQ - UPTET Feburary 2016

Correct AnswerOption B
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Total height of 10 girls
= 143 + 148 + 135 + 150 + 128 + 139 + 149 + 146 + 151 + 132
= 1421 cm .
Therefore, mean height = 1421/10
= 142.1 cm
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Correct AnswerOption A
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Correct AnswerOption B
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Correct AnswerOption D
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LCM of 2/3 and 3/4
(LCM of 2 and 3)/(HCF of 3 and 4) = 6/1 = 6.
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Correct AnswerOption D
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Let the age of A be 6x yr and age of B be 5x yr, respectively.
According to the question,
6x + 5x = 44 => 11x = 44
x = 4
∴ The ratio of A and B after 8 yrs
= (6x + 8)/(5x + 8)
= (24 + 8)/(20 + 8)
= 32/28 = 8/7.
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