Dhaka Higher Secondary 2011/2

Problem for Higher Secondary Group from Divisional Mathematical Olympiad will be solved here.
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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.
BdMO
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Dhaka Higher Secondary 2011/2

Unread post by BdMO » Fri Jan 28, 2011 10:25 pm

$A$ 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 $B$.

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leonardo shawon
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Re: Dhaka Higher Secondary 2011/2

Unread post by leonardo shawon » Sat Jan 29, 2011 11:27 am

when the left digit will be same for two numbers...
Ibtehaz Shawon
BRAC University.

long way to go .....

HandaramTheGreat
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Re: Dhaka Higher Secondary 2011/2

Unread post by HandaramTheGreat » Sun Jan 30, 2011 9:56 am

yea... leftmost digit should be same for two numbers, minimum difference of tens digit of two numbers will be $1$ and difference of units digit will be $2$... so minimum difference is $12$...

the arrivals
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Re: Dhaka Higher Secondary 2011/2

Unread post by the arrivals » Mon Jan 31, 2011 12:59 pm

whats problem with 111 and 109.see difference is 02...:D
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HandaramTheGreat
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Re: Dhaka Higher Secondary 2011/2

Unread post by HandaramTheGreat » Mon Jan 31, 2011 4:42 pm

wah! that's great! i had tried only 2 of dhaka h.s. problems, both are wrong! :mrgreen:

:evil:

the arrivals
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Re: Dhaka Higher Secondary 2011/2

Unread post by the arrivals » Mon Jan 31, 2011 8:35 pm

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

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Moon
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Re: Dhaka Higher Secondary 2011/2

Unread post by Moon » Tue Feb 01, 2011 11:26 pm

^^Yup...Dhaka MO was hard! :)
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Tahmid Hasan
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Re: Dhaka Higher Secondary 2011/2

Unread post by Tahmid Hasan » Tue Feb 01, 2011 11:35 pm

i could only solve 6 and 2 of them were wrong.
i still haven't solved or couldn't 1 prob
বড় ভালবাসি তোমায়,মা

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sm.joty
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Re: Dhaka Higher Secondary 2011/2

Unread post by sm.joty » Mon Nov 28, 2011 4:07 pm

I think the answer is 12.
because the highest value of A is 987 and B is 999 .
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*Mahi*
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Re: Dhaka Higher Secondary 2011/2

Unread post by *Mahi* » Mon Nov 28, 2011 6:22 pm

@Joty:this is a solved topic and your ans is incorrect. see earlier posts.
Please read Forum Guide and Rules before you post.

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