Question : Directions: Which of the following numbers will replace the question mark (?) in the given series? 25, 26, 28, 32, 40, ?
Option 1: 50
Option 2: 56
Option 3: 58
Option 4: 52
Correct Answer: 56
Solution : Given: 25, 26, 28, 32, 40, ?
Add twice the difference between the previous number in the next number – 25 + 1 = 26 26 + (1 × 2) = 26 + 2 = 28 28 + (2 × 2) = 28 + 4 = 32 32 + (2 × 4) = 32 + 8 = 40 40 + (2 × 8) = 40 + 16 = 56
So, the required missing number in the series is 56. Hence, the second option is correct.
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Question : Directions: Which of the following numbers will replace the question mark (?) in the given series? 8, 10, 16, 28, ?
Option 1: 46
Option 3: 48
Option 4: 58
Question : Directions: Which number will replace the question mark (?) in the following number series? 52, 42, 34, 28,?
Option 1: 24
Option 2: 22
Option 3: 26
Option 4: 28
Question : Directions: Which of the following numbers will replace the question mark (?) in the given series? 32, 32, 32, 34, ?, 106, 530
Option 1: 96
Option 2: 38
Option 3: 102
Option 4: 34
Question : Directions: Which of the following numbers will replace the question mark (?) and complete the given number series? 15, 19, 21, 25, 27, ?
Option 1: 31
Option 2: 32
Option 3: 29
Option 4: 30
Question : Directions: Which of the following numbers will replace the question mark (?) in the given series? 352, 326, 284, 225, 148, ?
Option 1: 71
Option 2: 54
Option 3: 52
Option 4: 50
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