Question : Directions: Select the number from among the given options that can replace the question mark (?) in the following series. 39, 53, ?, 108, 149, 199
Option 1: 81
Option 2: 72
Option 3: 79
Option 4: 76
Correct Answer: 76
Solution : Given: 39, 53, ?, 108, 149, 199
The pattern is as follows – 39 + 14 = 53 53 + (14 + 9) = 53 + 23 = 76 76 + (23 + 9) = 76 + 32 = 108 108 + (32 + 9) = 108 + 41 = 149 149 + (41 + 9) = 149 + 50 = 199
So, 76 is the missing number of the series. Hence, the fourth option is correct.
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