Question : Directions: In the following question a series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.
3, 6, 9, 15, 24, 39, 63, ?
Option 1: 100
Option 2: 87
Option 3: 102
Option 4: 99
Correct Answer: 102
Solution :
Given:
3, 6, 9, 15, 24, 39, 63, ?
Add two consecutive terms to get the next term in the series –
3 + 6 = 9; 9 + 6 = 15; 15 + 9 = 24; 24 + 15 = 39; 39 + 24 = 63; 63 + 39 = 102
So, 102 is the missing term in the series. Hence, the third option is correct.
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