Number Series - Type 1

In each series, look for the degree and direction of change between the numbers. In other words, do the numbers increase or decrease, and by how much

Look at this series: 6, 13, 28, 59, ... What number should come next?

Answer: Option D

Explanation:

The given series is in the pattern x 2 + 1, x 2 + 2, x 2 + 3,............

So, the missing term = 59 x 2 +4 = 122

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