Question : Directions: Select the number that can replace the question mark (?) in the following series. 7, 11, 20, 36, 61, ?
Option 1: 97
Option 2: 99
Option 3: 95
Option 4: 94
Correct Answer: 97
Solution : Given: 7, 11, 20, 36, 61, ?
Add the square of the consecutive numbers starting from 2 in each number to obtain the next number. 7 + (2)2 = 7 + 4 = 11 11 + (3)2 = 11 + 9 = 20 20 + (4)2 = 20 + 16 = 36 36 + (5)2 = 36 + 25 = 61 61 + (6)2 = 61 + 36 = 97
So, the missing number is 97. Hence, the first option is correct.
Application | Eligibility | Selection Process | Result | Cutoff | Admit Card | Preparation Tips
Question : Directions: Select the number that can replace the question mark (?) in the following series. 15, 18, 13, 20, 11, ?
Option 1: 22
Option 2: 20
Option 3: 25
Option 4: 23
Question : Directions: Select the number from among the given options that can replace the question mark (?) in the following series. 61, 95, 138, 197, 279, (?)
Option 1: 397
Option 2: 389
Option 3: 391
Option 4: 395
Question : Directions: Which number will replace the question mark (?) in the following series? 37, ?, 61, 78, 97, 120, 149
Option 1: 48
Option 2: 42
Option 3: 51
Option 4: 60
Question : Directions: Which number will replace the question mark (?) in the following series? 112, ?, 83, 70, 58, 47, 37
Option 1: 94
Option 2: 97
Option 3: 100
Option 4: 104
Question : Directions: Select the number that can replace the question mark (?) in the following series. 105, 107, 103, ?, 101, 111
Option 1: 102
Option 3: 113
Option 4: 109
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile