find the sum of the odd natural number 1+3+5+7+...........+99
Answers
Answered by
2
Answer:
the answer is 4950
Step-by-step explanation:
1 + 2 + 3 + 4 + 5 + 6.........................+ 99 = 4950
Answered by
3
Answer:
it's 2500
Step-by-step explanation:
a=1
an=99
d=2
an=a+(n-1)d
99=1+(n-1)d
98=(n-1)2
n-1=98/2
n=49+1
n=50
Now,
Sn= n/2(a+an)
Sn=50/2(1+99)
Sn=25*100
Sn=2500
Therefore, sum of odd natural nos. is 2500
Similar questions