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Suppose S is the sum of the odd numbers from 1 through 49 inclusive & E is the sum of the even numbers from 2 through 48 inclusive. Which is greater, S or E? How much greater?

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           Supposing S is the sum of all the odd numbers from 1 through 49 (inclusive) and E is the sum of all even numbers from 2 through 48 (inclusive).  If all odd numbers from 1 through 49 is added, then S is 625 and E is 600. The value of S is greater than the value of E hence;
625-600=25

Therefore, S is 25 greater than E.
 

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