A) 1
B) 731
C) 1625
D) 2031
Correct Answer: D
Solution :
We have: \[\text{3}\times \text{5}+\text{1}=\text{16},\text{16 5}+\text{1}=\text{81},\text{81}\times \text{5}+\text{1}=\text{4}0\text{6}\]So, missing number \[=\text{4}0\text{6}\times \text{5}+\text{1}=\text{2}0\text{31}\]
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