1.

If the mean of 5, 7, x, 10, 5 and 7 is 7, then x =(a) 6 (b) 7 (c) 8 (d) 9

Answer» If the mean of 5, 7, x, 10, 5 and 7 is 7, then x =



(a) 6 (b) 7 (c) 8 (d) 9


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