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.
15, 14, 12, 9, 5, 0, ?
Option 1: –11
Option 2: –15
Option 3: –6
Option 4: –7
Correct Answer: –6
Solution :
Given:
15, 14, 12, 9, 5, 0, ?
Subtract consecutive natural numbers from the previous term to find the next term.
15 – 1 = 14; 14 – 2 = 12; 12 – 3 = 9; 9 – 4 = 5; 5 – 5 = 0; 0 – 6 = –6
So, the next term is –6. Hence, the third option is correct.
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