Question : Directions: Which number will replace the question mark (?) in the following series? 58, 59, 51, 78, 14, ?
Option 1: 97
Option 2: 139
Option 3: 83
Option 4: 163
Correct Answer: 139
Solution : Given: 58, 59, 51, 78, 14, ?
The pattern is as follows – 58 + (1) 3 = 58 + 1 = 59 59 – (2) 3 = 59 – 8 = 51 51 + (3) 3 = 51 + 27 = 78 78 – (4) 3 = 78 – 64 = 14 14 + (5) 3 = 14 + 125 = 139
So, 139 is the missing number of the series. Hence, the second option is correct.
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