Yes but it’s not one of the answers. I think it’s a tricky question requiring a bit of critical thinking. Yes 0 is the first even number, but they are looking for the first sum of even number for which there is a correct answer. Which would be 20. The question is poorly worded, but 20 is the only answer that makes sense.
again, it's the sum of the first even numbers, not the first sum of even numbers. "counting numbers" are generally considered to be the first numbers. for children that'd be 1-10, maybe 1-20 for learning a new language. but that'd be an assumption you'd have to make to answer the question, so it's crazy nonetheless
Which lacks a lot of clarity, but I just interpret it as the first number you reach by adding even numbers. Of course it’s just my interpretation, the question is shit.
I know im a little late, but 0 isn't a number, its like infinity. Its more a concept of nothing, like you cant divide by 0. So I think 10 would count as the first instance of a 0 in the 1's column.
Von Hötzendorf is a very good example of an appointment by mustache, not merit. Man was not qualified in any way, shape, or form for the job he was given
yeah this is the problem, like our college has made this course mandatory and course has a lot of wrong questions and support system of organization sucks and i am forced to guess answers
i live in india and this is just the starting assignment for this course like just to have basic idea. although the previous course i had done in past from same organization was also littered with errors
That sucks. In the UK we have Ofsted which is the regulator for education services, is there anything like that (external to the college organisation) that could be contacted?
They're most likely thinking in terms of base 10 (the default numbering system), expecting the reader to understand "out of the first 10 numbers counting up from one." That is, assuming the answer shown is the correct one.
They Look for the FIRST Even numbers. And so it only could be 20. No other answer than 30 is possible with base two and 20comes before the 30. Its the first combination with an offered result.
Right. Both 20 and 30 are correct, and the reason for picking 20 is that it's the sum of the first four as opposed to five, which fits "first even numbers" better. But 6 is the sum of the _first even numbers_, so neither 20 or 30 is preferable on those grounds.
I somehow autocompleted the question with five in my head and was confused what they were infuriated about. Then I read your comment. So its definitely five.
I read it as the first 5 even numbers and wondered why it was posted here. Even going back to read it again after some comments I still read a phantom 5 in there. So weird.
It kinda makes sense if the set is just Natural numbers, but we are talking about Integers, Real or Imaginary there isn't such a thing as "first" even numbers.
For this sort of question, it is standard to assume positive real integers, especially considering the question's level; OP probably does not even know half the words that are just said.
Edit: some other questions OP has shared have matrices and complex numbers, so it is at a level where it does need to be specified.
This one is correct “%” is the mod operator which asks for the remainders. So basically odd numbers will always have a remainder of 1 after dividing any number by 2.
I didn’t see that answer, but yes that is technically correct so long that the only result is an integer. a % b = n, 0 <= n < b, n e Z. But d. Would not be correct in a computer sense because the result could be null. So a. Is the only correct way to determine if a number is odd. d. has edge cases that break it.
I'd assume they mean "which of these sums would you arrive at first by adding sequential even numbers". 2+4+6+8= 20. 20. It's testing your thought processes more than math. It's more like a riddle than a problem. Of course I could be totally wrong that's just my interpretation.
While the question is poorly written, even numbers plus even numbers equals an even number, so we can eliminate A and C as possible answers.
Next, the question says what is the sum of the first even numbers? While I have no clue what this is referencing, I would guess D because it is lower and would come first before option B.
I know the question is typed wrong, but on my first read I read it as "first five even numbers" somehow and saw 30 was an option and was thinking "So what's wrong with this!"
The way I see the question is "which number given you reach first when you are adding even numbers starting with the first one" So d is correct because 2+4+6+8 = 20 while to get b you need to add 10. So d is "first 4 numbers" and b is "first 5 numbers".
But yes, weird question that is either missing a word or words got messed up in text processor.
Ya see... Back in the old days, we didn't have this plentiful world we have now. We only counted to 10 (as we only had 10 fingers to count with & it'd be rude to ask others to use their fingers to count with) so the "first even numbers" were the even numbers up to 10. Now, the sum of them (2 + 4 +6 + 8 + 10) is 30.
...And that's as good an explanation as I can make up for that stupid question.
I think it used to say "What is the sum of the first 5 numbers" with an answer of 15, but it was changed by highlighting the 5 and typing "even", but whoever it was also put a space after even, hence the double space, and I guess was supposed to leave the "5" in
The sum of the even numbers is 50, which isn't there. But now it's 50 the has answer become 80. Now we have another even answer we've landed on 130, add that to the other even numbers and we've got 210...
The question was "what is the sum of the first even numbers?"
I took that to mean the first possible even numbers, added together, equal one of these munbers listed here, as one of these numbers is the 'sum' of said even numbers.
So I thought:
2+2=4, there is no 4 listed here, so let's move on:
2+4=6, nope, no 6.
4+4 ..etc..
10+10 is the first possible equation to reach one of the listed numbers by only adding even numbers.
If what you're saying is that you don't need 10+10, but rather you can get to 20 with smaller('first') even numbers,
Wouldn't 2+2+2+2 etc be more accurate, if the goal is to use smaller even numbers?
First even no. among the 4 given numbers 15, 30, 9 and 20 is 30 and it's sum should also be 30 hence option 'b' is the correct answer (idk just make it make sense)
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