Question

The question below is based on the given series
I. The series I satisfy a certain pattern, follow the same pattern in series II and answer the questions given below. I: 180, 358, 712, 1416, 2816, 5600 II: 124 …… 1920. If 1920 is the nth term, find the value of (n+2).

A 3
B 4
C 5
D 6
E 7
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