BdMO National 2014: Junior 10
Oindri has $100$ chocolates. She finished eating all her chocolates in $58$ days by eating at least one chocolate each day. Prove that, in some consecutive days she eat exactly $15$ chocolates.
Please Install $L^AT_EX$ fonts in your PC for better looking equations,
Learn how to write equations, and don't forget to read Forum Guide and Rules.
"When you have eliminated the impossible, whatever remains, however improbable, must be the truth." - Sherlock Holmes
Learn how to write equations, and don't forget to read Forum Guide and Rules.
"When you have eliminated the impossible, whatever remains, however improbable, must be the truth." - Sherlock Holmes
Re: BdMO National 2014: Junior 10
I'll give a step by step solution and I encourage everyone to think a lot before looking at the steps since it's an amazing problem.
Step $1$:
Step $2$:
Step $3$:
Step $1$:
Please Install $L^AT_EX$ fonts in your PC for better looking equations,
Learn how to write equations, and don't forget to read Forum Guide and Rules.
"When you have eliminated the impossible, whatever remains, however improbable, must be the truth." - Sherlock Holmes
Learn how to write equations, and don't forget to read Forum Guide and Rules.
"When you have eliminated the impossible, whatever remains, however improbable, must be the truth." - Sherlock Holmes
- atiab jobayer
- Posts:23
- Joined:Thu Dec 19, 2013 7:40 pm
- atiab jobayer
- Posts:23
- Joined:Thu Dec 19, 2013 7:40 pm
Post:Bbmo national2014:junior 03
Subrata has invented a new type of clock,according to which there are 15 hours in each day and 80 minutes in each hour.for example Subrata's clock shows 10.00 when the actual time is 16.00 in a traditional clock. If the time is 20.36 in a traditional clock,then what will be the time in Subrata's clock ?
math champion
Re: BdMO National 2014: Junior 10
Atiab, I've hardly used some English here. All the important things are written as equations.
Try focusing on the maths instead of getting bothered with the English. I believe you'll be just fine.
Still, if you have difficulty, let me know which step you didn't get.
And, please post new problems in different threads with proper name (specially, these BdMO problems)
Here's a new thread for Junior $03$.
Try focusing on the maths instead of getting bothered with the English. I believe you'll be just fine.
Still, if you have difficulty, let me know which step you didn't get.
And, please post new problems in different threads with proper name (specially, these BdMO problems)
Here's a new thread for Junior $03$.
Please Install $L^AT_EX$ fonts in your PC for better looking equations,
Learn how to write equations, and don't forget to read Forum Guide and Rules.
"When you have eliminated the impossible, whatever remains, however improbable, must be the truth." - Sherlock Holmes
Learn how to write equations, and don't forget to read Forum Guide and Rules.
"When you have eliminated the impossible, whatever remains, however improbable, must be the truth." - Sherlock Holmes