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Gaurav Bhardwaj

· started a discussion

· 1 Months ago

Shorcut (Question: 113835.0 )

Let series be 2,4,6
Then 2n is 6 so n is 3
Mean is 4, which is n+1 (3+1)

Question:

The mean of n values 2, 4, 6, 8, ....2n is:

Options:
A) 2n(n + 1)
B) \(\cfrac{1}{2}n(n + 1)\)
C) n
D) (n + 1) 
Solution:
Ans: (d)

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