Q221
The average of odd numbers up to 100 is
A.
49
B.
50.5
C.
50
AnswerD.
100
Answer: Option C
Solution
Answer: Option C
Solution:
Sum of odd numbers upto 100 = 1 + 3 + 5 +.....+ 99= [2 + (50 - 1) × 2]
= 2500
[ Sum of n terms of an A.P. with first term a and common difference]
∴ Required average
=
= 50