Question

find the sum of integers which are divisible by 5 from 1 to 100
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Answer 1

Answer:

here us your answer:-

Step-by-step explanation:

Required ap=5,10.....100

Nth term=a+(n-1)d

Here nth term=100

A=5..d=5

Therefore n=20

Sum=20/2[5+100]

10×105

1050

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