Question : Directions: Select the number from the given options that can replace the question mark (?) in the following series.
137, 125, 113, 101, ?
Option 1: 87
Option 2: 84
Option 3: 86
Option 4: 89
Correct Answer: 89
Solution :
Given:
137, 125, 113, 101, ?
The pattern is as follows –
137 – 12 = 125; 125 – 12 = 113; 113 – 12 = 101; 101 – 12 = 89
So, 89 is the missing number of the series. Hence, the fourth option is correct.