Question : Directions: In the following question, select the missing number from the given series.
51, 55, 64, 80, 105, ?
Option 1: 151
Option 2: 141
Option 3: 153
Option 4: 131
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Correct Answer: 141
Solution :
Given:
51, 55, 64, 80, 105, ?
Add the square of the consecutive natural numbers (starting from 2) to the previous term to get the next term in the series.
So, 141 is the missing term in the series. Hence, the second option is correct.
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