Search found 6 matches

Mon Jan 14, 2013 8:02 pm
Forum: Junior: Solved
Topic: Dhaka Junior 2011/5
Replies: 5
Views: 1930

Re: Dhaka Junior 2011/5

Four digit palindrome number should be like ABBA.If u reverse it u will get also ABBA.At first we will count how many numbers are palindrome.It is enough to count AB.SO we will get the result 9o.Then the ans 10000-90=9910 4 digit number starts from 1000 so there are 9000 4 digit numbers therefore t...
Mon Jan 14, 2013 7:51 pm
Topic: BdMO National 2012: Junior 6
Replies: 4
Views: 1537

Re: BdMO National 2012: Junior 6

The distance from B to the point on the circle that is furthest from B is 9.8 cm .
Sun Jan 13, 2013 4:49 pm
Topic: BdMO National Primary 2011/3
Replies: 2
Views: 1002

Re: BdMO National Primary 2011/3

Thu Jan 10, 2013 7:27 pm
Forum: Physics
Topic: Change of temperature by adding water
Replies: 4
Views: 1457

Change of temperature by adding water

Some hot water was added to three times its mass of water at 100 C and the resulting temperature was 200 C. What was the temperature of the hot water?

From ctg ques 2013
Thu Jan 10, 2013 5:10 pm
Forum: Junior: Solved
Topic: Dhaka Junior 2011/9
Replies: 7
Views: 2783

Re: Dhaka Junior 2011/9

nafistiham wrote:\$BD=2\$
\$DE=DO+OE=DO+DO=AC=3\$
\$BE^2=BD^2+DE^2=13\$
Can u draw it on a paper and then upload the image with positions of all e points? I cant understand the position of e
Thu Jan 10, 2013 4:42 pm