Search found 26 matches
- Tue Jan 22, 2013 6:46 am
- Forum: National Math Olympiad (BdMO)
- Topic: BdMO National 2012: Secondary 9
- Replies: 6
- Views: 5654
Re: BdMO National 2012: Secondary 9
Oh! sorry I found exactly how. I was considering 1 column and 1row equal to 1 colrow.
- Mon Jan 21, 2013 1:53 pm
- Forum: Secondary Level
- Topic: নিউরনে অনুরণন থেকে...
- Replies: 6
- Views: 16662
Re: নিউরনে অনুরণন থেকে...
Adib Bhai, what's LTE. And please give detailed solution.
- Mon Jan 21, 2013 10:31 am
- Forum: National Math Olympiad (BdMO)
- Topic: BdMO National 2012: Secondary 9
- Replies: 6
- Views: 5654
Re: BdMO National 2012: Secondary 9
itsnafi, how r there 2n col-rows. I can only find n col-rows.
- Sat Jan 19, 2013 8:08 pm
- Forum: Divisional Math Olympiad
- Topic: Mymemensingh 2012 Secondary 07
- Replies: 1
- Views: 2210
Re: Mymemensingh 2012 Secondary 07
1-2+3-4+5-6.... -1+-1+-1+...... for up to nth term of the sequence, where n is even, the summation of the terms is (n/2)(-1), which is negative. the next term is odd, (n+1)(-1)^(n+2), which is positive. According to the question, (n/2)(-1)+(n+1)(-1)^(n+2) must be greater than or equal to 2012. So le...
- Sat Jan 19, 2013 12:48 pm
- Forum: National Math Olympiad (BdMO)
- Topic: BdMO National 2012: Secondary 2, Junior 3, Primary 7
- Replies: 7
- Views: 6415
Re: BdMO National 2012: Secondary 2, Junior 3, Primary 7
Total (16+13)=29 times it didn't rain. total 11 times it rained. So in total there were (29+11)=40 times he was up there. So for (40/2)=20 days he was up there.
It either rained or it didn't rain. No other possibilities exist. 24 days mean 48 times. But only 40 times are stated about in the question.
It either rained or it didn't rain. No other possibilities exist. 24 days mean 48 times. But only 40 times are stated about in the question.
- Fri Dec 28, 2012 6:58 am
- Forum: Secondary: Solved
- Topic: Dhaka Secondary 2011/1 (Higher Secondary 2011/1)
- Replies: 9
- Views: 15654
Re: Dhaka Secondary 2011/1 (Higher Secondary 2011/1)
What if among the 12 sizes of the silver ring 10 of them are same as the 10 sizes of the gold ring.so shudnt the size of the gold rings be a subset of the sizes of the silver rings. so with worst case scenario I think the answer shud be (50+73+1)=124. Please let me know if there is any bug in my ans...