Question

Find the sum of integers from 1 to 100 that are divisible by 2 or 5.

Answer 1

Answer:

Step-by-step explanation:

Find the sum of integers from 1 to 100 that are divisible by 2 or...

The integers from 1 to 100, which are divisible by 5, are 5, 10… 100. ...

The integers, which are divisible by both 2 and 5, are 10, 20, … 100. ...

∴Required sum = 2550 + 1050 – 550 = 3050.

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Answer 2

Answer:

Find the sum of integers from 1 to 100 that are divisible by 2 or 5.

Answer :

• The integers from 1 to 100, which are divisible by 5, are 5, 10… 100. ...
• The integers from 1 to 100, which are divisible by 5, are 5, 10… 100. ...The integers, which are divisible by both 2 and 5, are 10, 20, … 100. ...
• ∴ Required sum = 2550 + 1050 – 550 = 3050.