## Search found 23 matches

Wed Feb 20, 2019 8:55 am
Forum: Secondary Level
Topic: Someone ans it.
Replies: 1
Views: 284

### 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: 589

### 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: 589

### Re: Devide by \$6\$

\$VETO\$.Now I can see \$4\$.
Fri Jan 18, 2019 5:25 pm
Topic: BDMO National Primary 2018/8
Replies: 7
Views: 600

### 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
Topic: BDMO National Primary 2018/8
Replies: 7
Views: 600

### 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: 1047

### Re: need the solution

Hmm. Understood.
Thu Jan 17, 2019 2:51 pm
Topic: BDMO 2018 junior 10
Replies: 12
Views: 1201

### 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
Topic: 2018 Regional Set \$2\$ Higher Secondary \$P6\$
Replies: 2
Views: 298

### Re: 2018 Regional Set \$2\$ Higher Secondary \$P6\$

Didn't understood. Please give some hints.
Wed Jan 16, 2019 3:15 pm
Forum: Biology
Topic: Biology \$\bigcap\$ Mathematics
Replies: 18
Views: 5765

### Re: Biology \$\bigcap\$ Mathematics

Registered IELTS, PTE, TOEFL, IDP, ESOL, GMAT CELTA/DELTA, Whatsapp:+447537127155 We deal and specialize in helping you to get registered IELTS, PTE, TOEFL, IDP, ESOL, GMAT CELTA/DELTA, DEGREE, DIPLOMAS & other English Language Certificates. We produce ACT, ASVAB: Mathematics Knowledge, CLEP Math, ...
Wed Jan 16, 2019 3:08 pm
Forum: Biology
Topic: Biology \$\bigcap\$ Mathematics
Replies: 18
Views: 5765

### Re: Biology \$\bigcap\$ Mathematics

What's this in the topic of math vs biology.