Question

Find the sum of all integers between 50 and 500, which are multiples of 7.

Answer 1

Answer:

Hence the sum of all integers between 50 and 500 divisible by 7 is 17696

hope I can help you

Answer 2

Answer:

17696

Step-by-step explanation:

Integers btw 50 and 500 which r multiples of 7 =

56, 63, ........ 497

a = 56

An = 497

d = 7

n = ?

Sn = ?

An = a + (n-1)*d

497 = 56 + (n-1)*7

497-56 = (n-1)*7

441 = (n-1)*7

441/7 = n-1

63 = n-1

63+1 = n

n = 64

Sn = n/2*(a + An)

Sn = 64/2*(56 + 497)

Sn = 32*(553)

Sn = 17696

Hope it helps u

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