A) 40
B) 41
C) 39
D) 42
Correct Answer: B
Solution :
Average of first n natural numbers \[=\frac{n+1}{2}\] \[\therefore \] Required number \[=\frac{5(n+1)}{2}+1\] \[=\frac{5(15+1)}{2}+1=5\times 8+1=41\]You need to login to perform this action.
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