The sum of the digits of a five-digit positive integer is 2. (A five digit number cannot start with 0) The number of such integers is...? a) 1 b) 2 c) 3 d) 4 e) 5
How do you think we should start this?
5 digits numbers are from 10000 to 99999....
I don't understand the question
When you add all the numbers together in a five-digit number, they add up to 2.
You need to sum the digits, like for 10000, 1+0+0+0+0=1 You need the sum to be 2.
And you need to find such numbers in the range 10000 to 99999.
I don't think that this question is as simple
Does it mean how many numbers there are that you can make in that range to add up to two?
No, a single number whose digits add up to 2.
Yes, but the answers can only be 1,2,3,4 and 5?
Would 20000 be the answer then?
Yes.
What about 11000? or 10001?
are this in statistics and probability course?
it can be 10001 or 10010 or 10100 or 11000
I think he is asking about the possible outcomes the answer is 5 because the integer may be :11000,10100,10010,10001,20000
Oh yeah...I never thought of those answers and I also didnt think of the question like that
Guys please, let him solve this.
Ok, yes. But the question is a little confusing. Is it how many outcomes?
Im not even sure myself all the questions says is "The number of such integers is" and then they give the multiple choice
Hmm. Ok well, good luck :) Hope we could have helped!
Yes you all have helped me so much (: Thank you guys
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