Question

find the sums of 7+10+13+......184

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Answer 1

Answer:

5730

Step-by-step explanation:

here

a=7

d=10-7=3

An = 184

by the AP we know that

nth term that is An = a+(n-1)d

putting the values we get

184= 7+(n-1)3

177=(n-1)3

59=n-1

n=60....................1

as we got the number of terms of this AP

so we can put the values in summation formula

that is

Sn=n/2{a+An}

putting the values in formula we get

Sn = 60/2(7+184)

Sn=30*191

Sn=5730

so the sum of numbers=5730