Question
If 'M' is the square root of the nearest square to the
wrong number in following series, then find the value of '2M'. 64, 12, 88, 15, 110, 17.625Solution
64 x (1/8) + 4 = 12
12 x 7 + 4 = 88
88 x (1/8) + 4 = 15
15 x 7 + 4 = 109
109 x (1/8) + 4 = 17.625
Therefore, 109 should come in place of 110
So, the nearest square is 100
So, M = 10
Or, 2 x M = 20
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