Question : Directions: In the following question a series is given, with one number missing. Choose the correct alternative from the given ones that will complete the series.
3, 4, 7, ?, 18, 29, 47
Option 1: 8
Option 2: 9
Option 3: 11
Option 4: 12
Correct Answer: 11
Solution :
Given:
3, 4, 7, ?, 18, 29, 47
Add the first two numbers to get the third number, then add the second and third numbers to get the fourth number and so on.
3 + 4 = 7; 7 + 4 = 11; 11 + 7 = 18; 18 + 11 = 29; 29 + 18 = 47
So, the missing number is 11. Hence, the third option is correct.
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