https://file.aiquickdraw.com/mathbot/file/17269171800891jn3cvlv.jpg

The problem in the image is written in Indonesian and it can be translated as:

**"The age ratio of the older sibling (Kakak) and the younger sibling (Adik) is 7:4. If the older sibling is 28 years old, what is the age difference between them?"**

### Solution:

Let the age of the older sibling (Kakak) be represented by \( 7x \), and the age of the younger sibling (Adik) be represented by \( 4x \). According to the problem, the older sibling is 28 years old:

\[
7x = 28
\]

Solving for \( x \):

\[
x = \frac{28}{7} = 4
\]

Now, we can find the age of the younger sibling (Adik):

\[
\text{Adik's age} = 4x = 4 \times 4 = 16
\]

Thus, the younger sibling is 16 years old. To find the age difference:

\[
\text{Age difference} = 28 - 16 = 12
\]

### Final Answer:
The age difference between the older sibling and the younger sibling is 12 years.

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Would you like more details or have any questions?

Here are five additional questions related to this topic:
1. How would the ratio change if the older sibling was 35 years old instead of 28?
2. Can you generalize this ratio problem for any ages?
3. What if the age ratio was reversed to 4:7 for younger to older sibling?
4. How do age differences remain constant, even when the ratio changes with time?
5. Can this ratio problem be applied to scenarios with more than two people?

**Tip**: Ratios are a useful way to compare quantities, but always remember to adjust for the actual values when solving real-world problems!

Perbandingan usia Kakak dan Adik 7:4. Jika usia Kakak 28 tahun, berapa selisih umur Kakak dan Adik?

Solusi untuk masalah matematika tentang perbandingan usia Kakak dan Adik dengan rasio 7:4. Kakak berusia 28 tahun, hitung selisih umur mereka. Pelajari konsep rasio dan aljabar dengan solusi langkah demi langkah. Cocok untuk siswa kelas 6-8.

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