Direction: A series is given with one/two term missing. Choose the correct alternative from the given ones that will complete the series. |
A) 1262
B) 1707
C) 4027
D) 4207
Correct Answer: B
Solution :
The pattern is \[+\,5,\] \[+\,20,\] \[+\,80,\] \[+\,320,...\text{ }i.e.,\] \[(5\times {{1}^{2}}),\]\[(5\times {{2}^{2}}),\] \[(5\times {{4}^{2}}),\] \[(5\times {{8}^{2}}),...\] So, missing term \[=427+(5\times {{16}^{2}})=427+1280+1707\]You need to login to perform this action.
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