Question
A-5, A, 35, 52, 78,
115 If we start a series with the value of √A and it follows the same pattern as given in the series,then what is (A-21)th term in the series.Solution
ATQ, 
So, (A-5) value will be 20 and A = 25 . Now the series will start from √A = √25 = 5, So series will start from 5 Now it follows the same pattern as the given above so, 5 +5 = 10 10 + 10 = 20 20 + 17 = 37 37+26 = 63 So the (A-21)th term = (25-21)th = 4th terrm will be = 37
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