Dhaka Higher Secondary 2011/2
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Please don't post problems (by starting a topic) in the "Higher Secondary: Solved" forum. This forum is only for showcasing the problems for the convenience of the users. You can post the problems in the main Divisional Math Olympiad forum. Later we shall move that topic with proper formatting, and post in the resource section.
Please don't post problems (by starting a topic) in the "Higher Secondary: Solved" forum. This forum is only for showcasing the problems for the convenience of the users. You can post the problems in the main Divisional Math Olympiad forum. Later we shall move that topic with proper formatting, and post in the resource section.
$A$ is three digit number all of whose digits are different. $B$ is a three digit number all of whose digits are same. Find the minimum difference between $A$ and $B$.
- leonardo shawon
- Posts:169
- Joined:Sat Jan 01, 2011 4:59 pm
- Location:Dhaka
Re: Dhaka Higher Secondary 2011/2
when the left digit will be same for two numbers...
Ibtehaz Shawon
BRAC University.
long way to go .....
BRAC University.
long way to go .....
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- Posts:41
- Joined:Tue Dec 21, 2010 10:17 pm
Re: Dhaka Higher Secondary 2011/2
whats problem with 111 and 109.see difference is 02...
women of purity are for men of purity and hence men of purity are for women of purity - THE HOLY QURAN
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- Posts:135
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Re: Dhaka Higher Secondary 2011/2
wah! that's great! i had tried only 2 of dhaka h.s. problems, both are wrong!
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- Posts:41
- Joined:Tue Dec 21, 2010 10:17 pm
Re: Dhaka Higher Secondary 2011/2
perhaps you tried its the credit.
women of purity are for men of purity and hence men of purity are for women of purity - THE HOLY QURAN
Re: Dhaka Higher Secondary 2011/2
^^Yup...Dhaka MO was hard!
"Inspiration is needed in geometry, just as much as in poetry." -- Aleksandr Pushkin
Please install LaTeX fonts in your PC for better looking equations,
learn how to write equations, and don't forget to read Forum Guide and Rules.
Please install LaTeX fonts in your PC for better looking equations,
learn how to write equations, and don't forget to read Forum Guide and Rules.
- Tahmid Hasan
- Posts:665
- Joined:Thu Dec 09, 2010 5:34 pm
- Location:Khulna,Bangladesh.
Re: Dhaka Higher Secondary 2011/2
i could only solve 6 and 2 of them were wrong.
i still haven't solved or couldn't 1 prob
i still haven't solved or couldn't 1 prob
বড় ভালবাসি তোমায়,মা
Re: Dhaka Higher Secondary 2011/2
I think the answer is 12.
because the highest value of A is 987 and B is 999 .
because the highest value of A is 987 and B is 999 .
হার জিত চিরদিন থাকবেই
তবুও এগিয়ে যেতে হবে.........
বাধা-বিঘ্ন না পেরিয়ে
বড় হয়েছে কে কবে.........
তবুও এগিয়ে যেতে হবে.........
বাধা-বিঘ্ন না পেরিয়ে
বড় হয়েছে কে কবে.........
Re: Dhaka Higher Secondary 2011/2
@Joty:this is a solved topic and your ans is incorrect. see earlier posts.
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Use $L^AT_EX$, It makes our work a lot easier!
Nur Muhammad Shafiullah | Mahi
Use $L^AT_EX$, It makes our work a lot easier!
Nur Muhammad Shafiullah | Mahi