Math, asked by Manideepbablu2493, 1 year ago

The sum of all multiples of seven between 0 to 500

Answers

Answered by ampiligouri
0

Sn=n/2 (a+an)

Sn=71/2 (7+497)

Sn=71×252

Sn=17892

Attachments:
Answered by maloorajrishi
0

Answer:

Step-by-step explanation:

a=7

d=7

an= 497

An= a+(n-1)d

497 = 7+(n-1)7

490=(n-1)7

n-1=70

n=71

Therefore

Sn=n/2(a+l)

= 71(7+497)/2

=17892

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