Question

if even numbers from 1 to 100 be deleted, then what will be the sum of central numbers?​

Answer 1

So we can do the following: Sum of odd consecutive integers from 1 to 100 = (Sum of all consecutive integers from 1 to 100) - (Sum of even consecutive integers from 1 to 100). Sum of odds = (100 x 101/2) - [2 x (50 x 51/2)] = 5050 - 2550 = 2500. Now, the set {3,5,7,9...☺

Answer 2

Step-by-step explanation:

Sum of 1 to 100 number is

n(n+1)/2

100(100+1)/2

50×101

5050