https://file.aiquickdraw.com/mathbot/file/1726050555362leb4gdfw.jpg

The problem in the image seems to be:

**Problem**:
- Ravi, Peter, and Meng Huat shared some marbles.
- Ravi received 50% of the marbles.
- Meng Huat received 4 times as many marbles as Peter.
- Meng Huat received 28 marbles.

We need to find out how many marbles they had altogether.

### Let's break this down:

1. **Step 1**: Meng Huat received 4 times the number of marbles Peter received.
   - Let Peter's number of marbles be \( P \). Therefore, Meng Huat received \( 4P \) marbles.
   - We know Meng Huat received 28 marbles, so:
     \[
     4P = 28
     \]
   - Solving for \( P \):
     \[
     P = \frac{28}{4} = 7
     \]
   - Peter received 7 marbles.

2. **Step 2**: Ravi received 50% of the total number of marbles.
   - Let the total number of marbles be \( T \).
   - Ravi received 50% of \( T \), so Ravi received \( \frac{T}{2} \) marbles.

3. **Step 3**: The total number of marbles is the sum of what Ravi, Peter, and Meng Huat received:
   \[
   T = \frac{T}{2} + 7 + 28
   \]
   Simplifying this equation:
   \[
   T = \frac{T}{2} + 35
   \]
   Multiply everything by 2 to get rid of the fraction:
   \[
   2T = T + 70
   \]
   Subtract \( T \) from both sides:
   \[
   T = 70
   \]

So, the total number of marbles is **70**.

---

Do you want more details on any step, or have any other questions? 

Here are 5 related questions to expand your understanding:
1. How would the total change if Ravi received a different percentage?
2. What if Meng Huat received 5 times Peter's marbles?
3. How would the equation change if Peter received twice the marbles Meng Huat received?
4. Can you write a formula to find the total number of marbles based on any multiple of Peter's?
5. How would you solve this if no numerical values were provided for Meng Huat's or Peter's marbles?

**Tip**: When faced with proportional relationships in problems, always express the variables in terms of a single unknown for clarity.

Ravi, Peter, and Meng Huat shared some marbles. Ravi received 50% of the marbles. Meng Huat received 4 times as many marbles as Peter. Meng Huat received 28 marbles. How many marbles did they have altogether?

Learn how to solve a problem involving the distribution of marbles between Ravi, Peter, and Meng Huat. Meng Huat received 4 times as many marbles as Peter, while Ravi received 50% of the total marbles. Meng Huat received 28 marbles. Suitable for students in Grades 5-7.

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