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Mathematics 13 Online
OpenStudy (anonymous):

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

OpenStudy (anonymous):

How do you think we should start this?

OpenStudy (anonymous):

5 digits numbers are from 10000 to 99999....

OpenStudy (anonymous):

I don't understand the question

OpenStudy (anonymous):

When you add all the numbers together in a five-digit number, they add up to 2.

OpenStudy (anonymous):

You need to sum the digits, like for 10000, 1+0+0+0+0=1 You need the sum to be 2.

OpenStudy (anonymous):

And you need to find such numbers in the range 10000 to 99999.

OpenStudy (anonymous):

I don't think that this question is as simple

OpenStudy (anonymous):

Does it mean how many numbers there are that you can make in that range to add up to two?

OpenStudy (anonymous):

No, a single number whose digits add up to 2.

OpenStudy (anonymous):

Yes, but the answers can only be 1,2,3,4 and 5?

OpenStudy (anonymous):

Would 20000 be the answer then?

OpenStudy (anonymous):

Yes.

OpenStudy (anonymous):

What about 11000? or 10001?

OpenStudy (anonymous):

are this in statistics and probability course?

OpenStudy (anonymous):

it can be 10001 or 10010 or 10100 or 11000

OpenStudy (anonymous):

I think he is asking about the possible outcomes the answer is 5 because the integer may be :11000,10100,10010,10001,20000

OpenStudy (anonymous):

Oh yeah...I never thought of those answers and I also didnt think of the question like that

OpenStudy (anonymous):

Guys please, let him solve this.

OpenStudy (anonymous):

Ok, yes. But the question is a little confusing. Is it how many outcomes?

OpenStudy (anonymous):

Im not even sure myself all the questions says is "The number of such integers is" and then they give the multiple choice

OpenStudy (anonymous):

Hmm. Ok well, good luck :) Hope we could have helped!

OpenStudy (anonymous):

Yes you all have helped me so much (: Thank you guys

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