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.
6, 12, 36, 144, 720, 4320, ?
Option 1: 30420
Option 2: 30240
Option 3: 31240
Option 4: 32240
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Correct Answer: 30240
Solution :
Given:
6, 12, 36, 144, 720, 4320, ?
Multiply each previous term by consecutive natural numbers starting from 2 to get the next term.
6 × 2 = 12; 12 × 3 = 36; 36 × 4 = 144; 144 × 5 = 720; 720 × 6 = 4320; 4320 × 7 = 30240
So, 30240 is the missing number in the given series. Hence, the second option is correct.
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