Answer:
This question is missing some parts, but Dave could have:
- Dave 25 weets, Martin 0 weets
- Dave 27 weets, Martin 3 weets
- Dave 29 weets, Martin 6 weets
- Dave 31 weets, Martin 9 weets
...
Explanation:
Since we don't really have much information, we can only rely on the ratio to pull through. Assuming that the ratio is refering to 2 (Dave) : 3 (Martin), we can multiply both by whatever number to get whatever total weets they might have.
Since Martin gives Dave 15 weets, that means that Martin has to have at least 15 weets. So we have to multiply the ratio (Dave and Martin both) with 5+ to get whatever total amount of weets they each have.
So (2/3)(5/5) that Dave might have 10 weets and Martin might have 15 weets. Then when Martin gives Dave 15 weets, Dave'll have 25 weets and Martin 0.
But there's no other information on the total number of weets or anything so Dave may have 25, 27, 29, 31, etc weets.