Question : Directions: In the following question a series is given, with one number missing. Select the missing number from the given series.
2, 3, 7, 22, 155, ?
Option 1: 1701
Option 2: 1711
Option 3: 3410
Option 4: 3411
Correct Answer: 3411
Solution :
Given:
2, 3, 7, 22, 155, ?
Multiply the previous two terms and add 1 to the resultant to get the next term of the series –
(3 × 2) + 1 = 7; (7 × 3) + 1 = 22; (22 × 7) + 1 = 155; (155 × 22) + 1 = 3411
So, 3411 is the missing term of the given series. Hence, the fourth option is correct.
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