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.
1, 48, 4, 24, 7, ?, 10, 2
Option 1: 8
Option 2: 2
Option 3: 18
Option 4: 12
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Correct Answer: 8
Solution :
Given:
1, 48, 4, 24, 7, ?, 10, 2
Add 3 to each alternate term to get the next alternate term of the series.
1 + 3 = 4; 4 + 3 = 7; 7 + 3 = 10
Also, divide other alternate terms by the consecutive natural numbers (starting from 2) to get the next alternate term of the series.
48 ÷ 2 = 24; 24 ÷ 3 = 8; 8 ÷ 4 = 2
So, the missing term of the series is 8. Hence, the first option is correct.
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