Challenging 6'th grade question for math enthusiasts!
Taken from "Russian math olympiads in Moscow 1993-2002" by N.Aghanov and O.Podlipsky.
Given at the regional stage of 1994.
The pages of a book are numbered from the first to the very last. The hooligan Vasia ripped 25 pages of the said book and added the numbers on these pages. He got 1994. When Kolia found out about this, he instantly knew that Vaisa had added the numbers wrong. Explain why Kolia is right.

Hey! We 've verified this expert answer for you, click below to unlock the details :)

I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!

the sum better be odd

^_^

Looking for something else?

Not the answer you are looking for? Search for more explanations.

## More answers

Looking for something else?

Not the answer you are looking for? Search for more explanations.