Instructions
In each of the following questions, a series is given, with one term missing, Choose the correct alternative from the given ones that will complete the series.
Solution
The first digit is formed by subtracting the numbers and the second (and third) digit(s) is formed by adding the numbers.
7,2 = (7-2),(7+2) = 59
and 9,1 = (9-1),(9+1) = 8 10
Similarly, 5,4 = (5-4),(5+4) = 19
=> Ans - (A)
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