Math, asked by yashvardhanborude4, 1 year ago

What is the sum of all odd numbers from 11 to 60?

Answers

Answered by Akv2
5
864

Plz Mark It As the Brainliest Answer And Drop A ♥
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yashvardhanborude4: Sorry it is wrong
yashvardhanborude4: Answer is 875
Akv2: check it correctly
Akv2: checking
Akv2: ohh sorry mine is wrong
yashvardhanborude4: It's OK
Answered by shreya32457
19
T1=a=11......as 1st odd no. is 11
Tn=59.........as last odd no. is 59
d=2
tn=a+d(n-1)
59=11+2(n-1)
59=11+2n-2
59-11=2n-2
59-11+2=2n
50=2n
n=50/2
n=25
so there are total 25 odd no.
sn=n/2(T1+TN)
sn=25/2(11+59)
sn=25*70/2
sn=25*35
so sn=875.....
I hope this will help you......☺

yashvardhanborude4: And to find their total sum of odd no.(formula)
yashvardhanborude4: In this problem which formula did you use
yashvardhanborude4: Thanks very much
pratham3876: What is the farmula in this ex??
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