Question : Directions: Which of the following four options can replace the question mark (?) in the following series?
66, 87, 110, ?, 162, 191
Option 1: 120
Option 2: 125
Option 3: 146
Option 4: 135
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Correct Answer: 135
Solution :
Given:
66, 87, 110, ?, 162, 191
Add consecutive odd numbers starting from 21 to the previous number to get the next number.
66 + 21 = 87; 87 + 23 = 110; 110 + 25 = 135; 135 + 27 = 162; 162 + 29 = 191
So, 135 is the missing number. Hence, the fourth option is correct.
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