For problem #22 There has been an editing mistake I hope the explanation is still clear. N= 64/10/8/1 and the sum of the possible values of N is equal to 83
In question 17, you use a formula to find how many factors 2020 has. I understand how to use the formula but can you explain why the formula works? 52:03
I'm thinking you don't understand the +1 in the formula. The plus one is the one extra possiblity that you don't use the factor. For example if you get 2^3 in the prime factorization, you have 4 options. To use one 2, two 2s or three 2s or no 2 at all .
Can stars and bars method be used for problem 23? Edit: I believe stars and bars method can be used only if not all 5 awards MUST be handed out? Correct me if I’m wrong.
Not really. We use stars and bars when all stars are the same. Here the question clearly states 5 different awards. That's why you can't use stars and bars
For problem #22 There has been an editing mistake I hope the explanation is still clear. N= 64/10/8/1 and the sum of the possible values of N is equal to 83
THANK YOU SIR ........ LOVE FROM INDIA IAM PREPARING FOR RIMC JUNE 2024
In question 17, you use a formula to find how many factors 2020 has. I understand how to use the formula but can you explain why the formula works? 52:03
I'm thinking you don't understand the +1 in the formula. The plus one is the one extra possiblity that you don't use the factor. For example if you get 2^3 in the prime factorization, you have 4 options. To use one 2, two 2s or three 2s or no 2 at all .
I just realized, problem number 22 reminded me A LOT of the famous 3x + 1 problem or the "Collatz Conjecture". That's pretty neat.
It is indeed
???
On 1:37:32, you said you have allergies. But what are you allergic to?
It's seasonal. I don't know exactly
Is there a chance you have a more understandable explanation of problem 24 and 25?
Break down the question into parts and practice them individually. For example similar triangles and expressions
For problem 22, can't you put each one as N and then solve it. Wouldn't that be faster?
That makes it way more difficult
in description for 22 you put E but in video you said D, which one is it? thank you! :)
There was an editing mistake. The final part of the video is missing. But I think it is still clear. Don't you think 🤔
i guess so sir! :)@@math-with-Ali
so helpful thx!
thanks for the video :)
Can stars and bars method be used for problem 23? Edit: I believe stars and bars method can be used only if not all 5 awards MUST be handed out? Correct me if I’m wrong.
Not really. We use stars and bars when all stars are the same. Here the question clearly states 5 different awards. That's why you can't use stars and bars
Watch problem 25 of my recent video, the AMC 8 2019 one
jk
Press to skip sneezes 👉 1:37:37
:)
on 22 you accedentially wrote 11x3=34 instead of 11x3=33 33+1=34 but its fine i just wanted to let you know! :)
You forgot to circle the answer on problem 21 but i guess it ok, just wanted to let u know, by the way these videos are so helpful, thank you! 😀
i am confused because there is no problem #3
Me 2
Why did you skip #3
Watch him skip - 5:22
Editing mistake
1:37:22 - Bless you! 🤧
:)
You accidently skiped problem 3!
Yeah
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