find the sum of first 100 multiple of 5
Answers
Answered by
6
Answer
25250.....
Sn=n/2(2a+(n-1)d)
Mark as brainliest plz tnx
Answered by
4
Step-by-step explanation:
5,10,15,20,...........500
Sn=n/2(2a+(n-1)d)
=50(10+495)
=50(505)
=25250
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