since i cant be sure what question yure looking at idk but 3 would be the number of examples you had to give eg list and explain 3 skills
communication skills, teamwork skills, computer skills,
each correct mark is worth 1 mark (3@1) the 3+2 im not sure i think that that was put up wrong but i woould take it as for each correct example you give you got 2 marks
this could be totally wrong i would really need to see the question to answer correctly but from what you said that is y intrpretation
Let's say you get a question like this:
What has Evan learned from his self-evaluation of the business? (6 marks)
Because the question is 6 marks, you'd be looking for at least 3 points of information.
The marking scheme for this question shows 3@2m (1 + 1)
This means that you needed 3 points of information (if you gave more you'll be marked on best three). That's the '3' part.
The '@2' part means that each of the 3 points of information is worth two marks, which means for all 3 points the maximum you get is 6 marks.
Now, the '(1 + 1)' part means that for one point of information worth 2 marks, you give 1 mark for an adequate answer, and 1 mark for a very good answer. For instance, for this question, if you wrote down "You should be able to adapt your business" then you might get 1 out of 2 marks. But if you wrote down, say, "You should be able to adapt your business when the going gets tough, and that when things are going well, people are more likely to buy smaller, more affordable products." That would get you 2 out of 2 marks.
The significance of this is that if it says (1 + 1) for a 2 marker, then it means you get get one mark for half an answer. If the (1 + 1) isn't included, it means you get all or nothing; it's either 2 marks for getting it right, or 0 marks for getting it wrong or not providing enough detail.
So for that 6 mark question, if you wrote 3 answers like my first example above, you would still get 3 marks instead of 0.
As for your example, is that a real marking scheme? I can't think of a question that would have that combination as a marking scheme. More likely you would have either 3@1m, on its own, or something like 3@5m (3 + 2), which would mean 3 points of info each worth 5 marks, and for getting half the answer you'ld get 3 marks for the point, and for the full answer you'd get the extra 2 marks, which would bring that one point to 5 marks.
I hope that this helps you out. ;)
By the way, if my second example seems senseless, that's because it is. I meant to write something like "You should be able to adapt your business when the going gets tough and also when its going well, and people will always be more likely to buy smaller and more affordable products.