Question : Directions: In the following question, select the missing number of the given series. 1, 3, 7, 15, 31, ?
Option 1: 63
Option 2: 60
Option 3: 66
Option 4: 65
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Correct Answer: 63
Solution : Given: 1, 3, 7, 15, 31, ?
Add the power of 2 to the previous term to obtain the next term. 1 + (2)1 = 1 + 2 = 3, 3 + (2)2 = 3 + 4 = 7, 7 + (2)3 = 7 + 8 = 15, 15 + (2)4 = 15 + 16 = 31, 31 + (2)5 = 31 + 32 = 63
So, 63 is the missing term in the given series. Hence, the first option is correct.
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Question : Directions: In the following question a series is given, with one number missing. select the missing number from the given alternatives. 120, 119, 115, 106, 90, ?
Option 1: 75
Option 2: 65
Option 3: 77
Option 4: 62
Question : Directions: Which of the following numbers will replace the question mark (?) in the given series? 3, 7, 15, 31, 63, 127, 255, ?
Option 1: 520
Option 2: 511
Option 3: 560
Option 4: 510
Question : Directions: Select the number from among the given options that can replace the question mark (?) in the following series. 16, 23, 31, 40, 50, ?
Option 1: 60
Option 2: 62
Option 3: 61
Option 4: 63
Question : Directions: In the following question, select the missing number of the given series. 17, 19, 23, 29, 31, ?
Option 1: 30
Option 2: 47
Option 3: 40
Option 4: 37
Question : Directions: In the following question, select the missing number of the given series. 0, 22, 44, 66, ?, 110
Option 1: 88
Option 2: 99
Option 3: 94
Option 4: 90
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