Mental ability questions
1,4,13,40,?
A. 94
B. 120
C. 111
D. 121
Answers
Answered by
1
Step-by-step explanation:
1+3 = 4
1+3+3^2 = 13
1+3+3^2+3^3 = 40
1+3+3^2+3^3+3^4 = 121
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