## Search found 10 matches

### Re: 2017 Regional no.9 Dhaka

Oops I missed 81and 93!
Fri Jun 09, 2017 1:49 am

Topic: 2017 Regional no.9 Dhaka
Replies: 8
Views: 198

### Re: 2017 Regional no.9 Dhaka

I got 16 ,how 17 ??
Thu Jun 08, 2017 1:00 am

Topic: 2017 Regional no.9 Dhaka
Replies: 8
Views: 198

### Re: BdMO '16 regional junior/9

Hint:construct an isosceles triangle by joining the center of any small circle with the two big circles, then form an equation,solve it.......
Wed Jan 04, 2017 6:15 pm

Forum: Junior Level
Topic: BdMO '16 regional junior/9
Replies: 3
Views: 252

### Re: geometry that will make you mad!

thank you very much.
Mon Dec 07, 2015 12:39 pm

Forum: Junior Level
Topic: geometry that will make you mad!
Replies: 2
Views: 698

### Re: Acute angled circular

its C(7,3)=35
Thu Sep 03, 2015 5:58 pm

Forum: Junior Level
Topic: Acute angled circular
Replies: 13
Views: 1685

### 2014 chittagong BDMO question 10

can anyone please help me with this question?? ABC is a right angle triangle where angle A is right angle. The perpendicular drawn from A on BC intersects BC at point D. A point P is chosen on the circle drawn through the vertices of ΔADC such that CP perpendicular to BC and AP = AD. If a square is ...
Sat Jul 18, 2015 9:43 pm

Forum: Junior Level
Topic: 2014 chittagong BDMO question 10
Replies: 2
Views: 666

### geometry that will make you mad!

ABC is a right angle triangle where angle A is right angle. The perpendicular drawn from A on BC intersects BC at point D. A point P is chosen on the circle drawn through the vertices of ΔADC such that CP perpendicular to BC and AP = AD. If a square is drawn on the side BP, the area is 340 square un...
Fri Jul 17, 2015 3:12 pm

Forum: Junior Level
Topic: geometry that will make you mad!
Replies: 2
Views: 698

### Re: Acute angled circular

its 7c3 =35.by the formula of combination.
Thu Jul 16, 2015 1:22 pm

Forum: Junior Level
Topic: Acute angled circular
Replies: 13
Views: 1685

### triangle inscribed in a square

AVIK is a square. The point E is taken on VK in such a way that 3VE=EK. F is the midpoint of AK.
What is the value of FEI?

source:2014 national junior
Thu Jul 16, 2015 1:15 pm

Forum: Junior Level
Topic: triangle inscribed in a square
Replies: 2
Views: 502

### so big series

A new series is to be created after erasing some numbers from the series 1, 2, 3,
4…………. 400, in such a way so that the sum of any two numbers from the series
are not divisible by 7. What is the maximum number of terms to be found in new
series?

source:2014 dhaka ancholik, junior
Wed Jul 15, 2015 2:26 pm

Forum: Junior Level
Topic: so big series
Replies: 1
Views: 428