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, 2, 6, 24, 120, ?
Option 1: 360
Option 2: 720
Option 3: 600
Option 4: 640
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Correct Answer: 720
Solution :
Given:
1, 2, 6, 24, 120, ?
Multiply the previous term of the series by consecutive natural numbers from 2 onwards.
1 × 2 = 2; 2 × 3 = 6; 6 × 4 = 24; 24 × 5 = 120; 120 × 6 = 720
So, the missing number is 720. Hence, the second option is correct.
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