Search found 15 matches
- Wed Sep 08, 2021 3:44 pm
- Forum: Higher Secondary Level
- Topic: Counting Numbers with a Given Digit Sum
- Replies: 3
- Views: 18938
Re: Counting Numbers with a Given Digit Sum
Can you please show us your mathematical process for this problem or programming source code?
- Mon Jul 12, 2021 12:44 am
- Forum: Junior Level
- Topic: Memorable Year
- Replies: 1
- Views: 7675
Memorable Year
Sudipta noticed that his birth year $1978$ is a memorable year in which two number of two sides are $19$ and $78$. The sum of this two number is $97$ which is it's middle number. Now it is $2018$. How many years will Sudipta wait for the next memorable year? Source : Gonitzoggo, Link: https://gonitz...
- Sun Jun 27, 2021 8:09 pm
- Forum: Physics
- Topic: A Comeback Post (Assignment related)
- Replies: 7
- Views: 81362
Re: A Comeback Post (Assignment related)
Oops, sorry I misunderstood this and voted for 0. Please forgive me
- Sun Jun 27, 2021 8:02 pm
- Forum: Junior Level
- Topic: Computing Value of a Functional Equation
- Replies: 1
- Views: 6375
Computing Value of a Functional Equation
A Function $f(x)$ is such that for any integer $x$, $f(x) + x f(2-x) = 6$ . Compute $-2019 f(2020)$
- Tue May 18, 2021 5:31 pm
- Forum: Secondary Level
- Topic: A problem of Secondary Regional 2020.
- Replies: 1
- Views: 9808
Re: A problem of Secondary Regional 2020.
Well, after some researches and efforts I got the answer and I am really happy that my answer was correct. I got some explanations on internet. Gathering them all I am providing the full solution Let, $ 7 . (abcba) _{10} = (ABCCBA)_{10}$ ... ... ... $(1)$ Here, $$a,b,c,A,B,C \ \epsilon {0,1,2,...,9}...
- Mon May 17, 2021 7:25 pm
- Forum: Junior Level
- Topic: BDMO 2019 : National : Junior : Pblm 05
- Replies: 9
- Views: 21876
Re: BDMO 2019 : National : Junior : Pblm 05
Well, samiul_samin's solution is perfectly correct. But for better understanding, I am elaborating this a bit. Okay, here is the full solution: In order to find the $2019$th number of the series, we have to determine the perfect square and perfect cube numbers within $2019$ and the add that with 201...
- Fri May 14, 2021 2:51 pm
- Forum: Junior Level
- Topic: My first problem post
- Replies: 1
- Views: 7580
Re: My first problem post
This problem appeared as a problem in Regional contest (Junior Category) 2020. Okay, Here is the full solution: Think about the triangle $ADC$, in triangle $ADC$, height of the triangle is $DE=2$ and the land is $AC=7$. Then the area of triangle $ADC$ is: $\frac{2*7}{2} = 7$. Now, we know that, the ...
- Sun May 09, 2021 8:53 pm
- Forum: Physics
- Topic: A Problem of Secondary Physics Olympiad 2021
- Replies: 3
- Views: 11968
Re: A Problem of Secondary Physics Olympiad 2021
Great. Thanks a lot for your approach. But the problem is I am facing difficulty in order to find the actual answer. It would so kind of you if you help me regarding plugging the values and find the actual answer. Please help me because after 2 days I have to attend the contest.
- Sun May 09, 2021 1:01 am
- Forum: Physics
- Topic: A Problem of Secondary Physics Olympiad 2021
- Replies: 3
- Views: 11968
Re: A Problem of Secondary Physics Olympiad 2021
This problem appeared in my Regional Physics Olympiad 2021. I was failed to solve this one. But, I don't want to make mistakes anymore in my National Contest. Requiring your help regarding this Problem.
- Sun May 09, 2021 12:59 am
- Forum: Physics
- Topic: A Problem of Secondary Physics Olympiad 2021
- Replies: 3
- Views: 11968
A Problem of Secondary Physics Olympiad 2021
Plank's units are physical quantities formed as suitable combinations of light $c = 3.00 .10^8 ms^-1$. Reduced plank's constant is $h = 1.05 .10^-34 kgm^2 s^-2$ and gravitational constant $G = 6.67.10^-11 kgm^3s^-2$. That means we may write $A = c^a . h^b. G^c$ (a, b, c are numbers) obtaining all so...