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The question in the image is written in Indonesian and asks:

Pak Duta invests his money in a bank. The amount of investment is Rp 150,000,000.00. With a simple interest system and an interest rate of 1.5% per month, determine the total amount of Pak Duta's money after 2 years.

### Solution:

To calculate the total amount of money Pak Duta will have after 2 years, we use the formula for simple interest:

\[
A = P(1 + rt)
\]

Where:
- \(A\) = total amount after interest
- \(P\) = principal (initial amount) = Rp 150,000,000
- \(r\) = monthly interest rate = 1.5% per month = 0.015
- \(t\) = time in years = 2 years

Since the interest rate is monthly, we convert the time to months:
\[
t = 2 \times 12 = 24 \text{ months}
\]

Now, we can calculate the total amount using the formula. I'll compute that for you.

After 2 years, Pak Duta's total amount of money will be approximately Rp 204,000,000.00, using the simple interest system with a monthly interest rate of 1.5%.

Would you like more details, or do you have any questions?

Here are five related questions for practice:
1. How would the final amount change if the interest rate was 2% per month?
2. What is the difference between simple interest and compound interest?
3. How much interest did Pak Duta earn over the 2-year period?
4. How would the total amount be different if Pak Duta invested for 3 years instead of 2?
5. What would the total amount be if the interest were compounded monthly?

**Tip:** When dealing with interest calculations, always check whether the interest is simple or compounded, as this can significantly impact the final amount.

Pak Duta invests his money in a bank. The amount of investment is Rp 150,000,000.00. With a simple interest system and an interest rate of 1.5% per month, determine the total amount of Pak Duta's money after 2 years.

Learn how to calculate the total amount of money Pak Duta will have after investing Rp 150,000,000 at a monthly interest rate of 1.5% for 2 years using the simple interest formula. This problem involves percentage calculations and time conversion, suitable for students in Grades 10-12.

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