<think>
Okay, let's try to figure this out. The question is: If I had 29 apples today and I ate 28 apples yesterday, how many apples do I have?

Hmm, so first, the person says they had 29 apples today. But then they mention eating 28 apples yesterday. Wait, but when exactly did they eat them? The key here is to understand whether "today" refers to a specific day or if there's some time-related confusion.

So let me break it down step by step. If the person had 29 apples today (let's say today is Day X), and then yesterday was Day X-1, they ate 28 apples on that previous day. But how does this affect their current number of apples?

Wait a minute—if you eat an apple, you're reducing your total count. So if someone had some apples at the start of the day (today) but ate them earlier (yesterday), then we need to consider whether those 28 apples were part of today's stock.

But here's another angle: maybe "had" refers to possession before eating. If they have 29 apples now, and yesterday they ate 28 from their previous stash, does that mean the current count is different? But this depends on when exactly the apple consumption happened relative to having them.

Wait, but if today you had (i.e., possess) 29 apples, then regardless of what you did before—like eating some yesterday—you still have those 29 unless they were taken away. Unless there's a misunderstanding in time references here. Like maybe "today" and "yesterday" are being confused.

Alternatively, perhaps the problem is trying to trick us with tenses or wording. For example: If I had (past tense) 29 apples today? Wait no—actually, it says "I have 29 apples today"—so present perfect might be involved here?

Wait let me parse again:

Original question:
"If I had 29 apples today and I ate 28 apples yesterday how many apples do I have?"

So the structure is: If [condition1] (had 29) AND [condition2] (ate 28), then what's current count?

But "today" vs. "yesterday"—so if you had them today, but you ate some yesterday.

Wait that might be a contradiction? Because how can someone have apples on day X and eat them on previous day (day X-1)? Unless they're saying the 29 is their total now, which includes any leftovers from before. But this seems confusing with time references.

Alternatively, maybe it's about whether "had" refers to possession at a certain point in time versus current ownership.

Let me think of an example:

Suppose today (let’s say Monday) I have 29 apples. Then on Sunday (yesterday), I ate 28 apples. So the question is: How many do I have now?

But if you had 29 apples on Monday, and then yesterday—Sunday—you ate some of them, but how does that affect your current count? Wait—if today's apple count includes any leftovers from before.

Wait maybe it depends whether those eaten apples were part of the original stock. Suppose you started with more than 28, bought or had 29 on Monday (today), and then yesterday ate some—so if they are asking how many do I have now after eating them?

But this is getting too vague because there's not enough info about previous days' apple counts.

Wait but the question says "I had 29 apples today". So perhaps that means as of today, you possess 29. Then it adds: and I ate 28 yesterday (i.e., before today). But if those eaten ones were part of your stock?

But unless there's a time when they are subtracted from the current count.

Alternatively, maybe this is trying to test understanding that "yesterday" eating doesn't affect apples you have now. For example: If I ate 28 yesterday and currently have 29 today—then how many do I have? The answer would be still 29 unless they were taken away or something else.

Wait but maybe the question is a trick, because if "I had" implies that at some point in time (today) you possessed them. But then eating yesterday's apples doesn't affect your current count—unless those are from today’s stock.

But this seems unclear without knowing whether the 28 eaten were part of today's 29 or not.

Wait, but maybe it's a simple math problem where "had" is used in past tense for both. Like: If I had (past) 29 apples and ate (also past) 28 yesterday—how many do I have now?

But the wording says "I had... today". So that might be confusing.

Alternatively, maybe it's a play on words where you're supposed to realize that if you eat them, they are gone. But since one is in present ("today") and another past (yesterday), perhaps there's no overlap—so eating 28 yesterday doesn't affect the current count of apples today unless those were part of your stock.

But without knowing how many you had before or whether any remained after eating them, it’s ambiguous. However maybe we can assume that "today" refers to a time when they have 29 and then ate some on previous day—so perhaps subtracting the eaten ones from their current total?

Wait but if today is now (let's say Monday), you had 29 apples today—which could mean as of this moment, not necessarily all in one go. But eating yesterday would be before that.

So for example: Suppose I have a basket where on Sunday night, there were some number of apples. Then on Monday morning ("today"), the count is 29—maybe after adding or something else. And then during Sunday (yesterday), you ate 28. So how many do you currently have today?

But unless we know that those eaten ones are part of your current stock, it's impossible to tell.

Alternatively, maybe this question assumes a simple subtraction: if I had X apples and ate Y, the answer is X-Y regardless of time references—so even though one event happened yesterday. But in reality, you can't eat an apple unless you have them at that point.

But perhaps the problem expects us not to overcomplicate it and just do 29-28=1? Even if there's a timeline issue?

Alternatively maybe "had" is past tense for both—like: If I had (in total) 29 apples, but ate 28 yesterday. So how many now?

But that would be straightforward subtraction.

Wait the original question says:

"If I had 29 apples today and I ate 28 apples yesterday how many apples do I have?"

The wording is a bit confusing because "had" (past tense) for both, but one refers to 'today' which might imply present. Maybe it's supposed to be: If [I] have 29 apples now, and previously ate 28—so what's the current count?

But if that’s the case then answer is still unclear unless we know how many were eaten from where.

Wait but maybe there was a typo or confusion in tenses. Suppose it should read:

"If I had (past) 29 apples yesterday, and today ate 28...?" But no—the original question says "had 29 apples today" which is present tense ("have") if you're saying now.

Alternatively perhaps the user intended to say: If I have 29 apples today, but I ate 28 of them (yesterday), how many do I have?

But that would still be ambiguous. However in a basic math problem context, it's possible they expect simple subtraction—assuming all those eaten were from your current stock.

So if you had 29 and then ate 28, the answer is 1 apple left today.

Even though there might be an inconsistency with "yesterday" vs "today", maybe in a riddle or joke sense it's intended to ignore that. So perhaps the expected answer is 1.
</think>



To determine how many apples you have now, we need to analyze both statements and their logical implications:

- **Statement A:** *"I had 29 apples today."*
This suggests your current possession of 29 apples as a starting point.

- **Statement B:** *"I ate 28 apples yesterday."*

Now consider the timeline: If you "ate" an apple, it means that apple is no longer in your possession. The key here lies not only with what was eaten but also when and how this relates to today’s count of apples.

---

### Step-by-step reasoning:

1. **Assume all 28 apples consumed were from the current stock** (i.e., those you had on "today"). This is a reasonable interpretation in most basic math or riddle problems unless otherwise specified.

   - If that's true, and today’s count was originally *29*, then after eating 28 of them:
     $$
     \text{Remaining apples} = 29 - 28 = 1
     $$

---

### Consideration: Time discrepancy?

It might seem odd to say you "ate" something yesterday but still have it today. However, in the context of a riddle or simple math problem like this:

- The phrase *"I had 29 apples today"* is likely meant as your **current** number.
- Then, *yesterday* (a day before) was when those were eaten.

This creates an apparent contradiction unless we interpret it metaphorically: that you "had" the apples at some point and then consumed them. The problem assumes this logic for simplicity to arrive at a clear answer without overcomplicating time or ownership issues, which are not explicitly clarified in detail by the question itself.

---

### Final Answer:

$$
\boxed{1}
$$