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Question

If the mean and median of a set of number are 8.9 and 9 respectively, then the mode will be
(a) 7.2
(b) 8.2
(c) 9.2
(d) 10.2

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Solution

(c) 9.2It is given that the mean and median are 8.9 and 9, respectively.Mode=3×Median-2×MeanMode=3×9-2×8.9=27-17.8=9.2

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