Question : Directions: Which of the following numbers will replace the question mark (?) in the given series? 8, 15, 26, ?, 56, 75
Option 1: 39
Option 2: 41
Option 3: 35
Option 4: 43
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Correct Answer: 39
Solution : Given: 8,15, 26, ?, 56, 75
In the above-given series, add prime numbers to the previous number to obtain the next number – 8 + 7 = 15; 15 + 11 = 26; 26 + 13 = 39; 39 + 17 = 56; 56 + 19 = 75
So, 39 is the missing number. Hence, the first option is correct.
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Question : Directions: Which of the following numbers will replace the question mark (?) in the given series? 3, 8, 15, 26, 39, ?
Option 1: 61
Option 2: 49
Option 3: 52
Option 4: 56
Question : Directions: Which of the following numbers will replace the question mark (?) in the given series? 11, ?, 20, 29, 41, 56
Option 1: 16
Option 2: 13
Option 3: 15
Option 4: 14
Question : Directions: Which of the following numbers will replace the question mark (?) in the given series? 15, ?, 27, 39, 55, 75
Option 1: 19
Option 2: 20
Option 3: 21
Option 4: 18
Question : Directions: Which of the following numbers will replace the question mark (?) in the given series? ?, 11, 35, 107, 323
Option 1: 4
Option 2: 5
Option 3: 8
Option 4: 3
Question : Directions: Which of the following numbers will replace the question mark (?) in the given series? 108, 99, 88, ?, 60, 43
Option 1: 76
Option 2: 75
Option 3: 78
Option 4: 77
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