Search found 35 matches
Isobar
What is ISOBAR
Re: 0^0=1!
Give some logic. It's still not clear
- Wed Feb 20, 2019 8:55 am
- Forum: Secondary Level
- Topic: Someone ans it.
- Replies: 1
- Views: 9740
Someone ans it.
Imagine you have $5$ green and $5$ blue balls in a box. 2 balls are taken from the box what is the probability of at least one ball will be blue. What is the probability of those two balls will green
- Sat Jan 19, 2019 5:40 pm
- Forum: Secondary Level
- Topic: Devide by $6$
- Replies: 8
- Views: 8288
Re: Devide by $6$
I mean at first I was wrong. Then, I've tried to solve it and found $4$.. Now,I think I'm wrong.
- Fri Jan 18, 2019 5:48 pm
- Forum: Secondary Level
- Topic: Devide by $6$
- Replies: 8
- Views: 8288
Re: Devide by $6$
$VETO$.Now I can see $4$.
- Fri Jan 18, 2019 5:25 pm
- Forum: National Math Olympiad (BdMO)
- Topic: BDMO National Primary 2018/8
- Replies: 7
- Views: 5077
Re: BDMO National Primary 2018/8
Actually, I didn't solve it. I have used my দর্শনশক্তি। According the question I still think it will be 11.
- Thu Jan 17, 2019 3:13 pm
- Forum: National Math Olympiad (BdMO)
- Topic: BDMO National Primary 2018/8
- Replies: 7
- Views: 5077
Re: BDMO National Primary 2018/8
আয়তটির দৈর্ঘ্য, প্রস্থ বরাবর বিবেচনা করলে দুটি রাস্তা আছে। 1>7>12 & 1>6>12. প্রস্থ দুটিকে বাদ দিলে মোট 9টি খাড়া & বাকা রেখা আছে। এক্ষেত্রে 1×9×1=9. এখন 2+9=11. এটা আমার ধারনা। কদিন আগেই সম্ভাবনা শিখলাম তো তাই
- Thu Jan 17, 2019 2:54 pm
- Forum: Combinatorics
- Topic: need the solution
- Replies: 5
- Views: 8074
Re: need the solution
Hmm. Understood.
- Thu Jan 17, 2019 2:51 pm
- Forum: National Math Olympiad (BdMO)
- Topic: BDMO 2018 junior 10
- Replies: 12
- Views: 8117
Re: BDMO 2018 junior 10
$\angle COD=20$ and $\angle BOE=40$ So $\angle COD=60$. Now $\angle EAD=\angle COD$. so, $ADOE$ is a cyclic quadrilateral. Join $D,E$. Here $AE={2/3}AB$ and $AD$ is half of $AE$ and their intersected angle is $60$. SO, $AED$ is a $30-60-90$ triangle. So,$ \angle AED=\angle AOD=30$ So,$\angle AOC= 6...
- Wed Jan 16, 2019 3:16 pm
- Forum: Divisional Math Olympiad
- Topic: 2018 Regional Set $2$ Higher Secondary $P6$
- Replies: 2
- Views: 2636
Re: 2018 Regional Set $2$ Higher Secondary $P6$
Didn't understood. Please give some hints.