Grade upto college level Algebra
- The sum of integers from 1 to 100 that are divisible by 2 or 5 is …………
- The sum of integers from 1 to 100 that are divisible by 2 or 5 is …………
1 Answer
Deepak Patra
Hello Student,
Please find the answer to your question
Ans. The sum of integers from 1 to 100 that are divisible by 2 or = sum of integers from 1 to 100 divisible by 2 + sum of integers from 1 to 100 divisible by 5 – sum of integers from 1 to 100 divisible by 10 = (2 + 4 + 6 + ….. + 100) + (5 + 10 + 15 + ….. + 100 ) – (10 + 20 + ……… + 100)
= 50/2 [2 * 10 + 9 * 10] = 2550 + 1050 – 550 = 3050 Thanks
Deepak Patra
askIITians Faculty
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