Question
Two friends go shares in a car. Brian pays 1/4 and Don pays 3/8 of the total price of the car. The balance of K300 is loaned to them by Don's mother. How much does the car cost?
Answers
GPT-4o mini
Let the total cost of the car be \( x \).
According to the problem:
- Brian pays \( \frac{1}{4}x \)
- Don pays \( \frac{3}{8}x \)
The sum of their contributions and the loan from Don's mother should equal the total cost of the car:
\[
\frac{1}{4}x + \frac{3}{8}x + 300 = x
\]
To combine the fractions, we first need a common denominator. The least common multiple of 4 and 8 is 8. We can rewrite \( \frac{1}{4}x \) in terms of eighths:
\[
\frac{1}{4}x = \frac{2}{8}x
\]
Now substituting back into the equation, we get:
\[
\frac{2}{8}x + \frac{3}{8}x + 300 = x
\]
Combining the fractions on the left side:
\[
\frac{2 + 3}{8}x + 300 = x
\]
This simplifies to:
\[
\frac{5}{8}x + 300 = x
\]
To isolate \( x \), we subtract \( \frac{5}{8}x \) from both sides:
\[
300 = x - \frac{5}{8}x
\]
This simplifies to:
\[
300 = \frac{3}{8}x
\]
Now, to find \( x \), we multiply both sides by \( \frac{8}{3} \):
\[
x = 300 \cdot \frac{8}{3}
\]
Calculating this gives:
\[
x = 300 \cdot \frac{8}{3} = 100 \cdot 8 = 800
\]
Thus, the total cost of the car is \( \boxed{800} \).
According to the problem:
- Brian pays \( \frac{1}{4}x \)
- Don pays \( \frac{3}{8}x \)
The sum of their contributions and the loan from Don's mother should equal the total cost of the car:
\[
\frac{1}{4}x + \frac{3}{8}x + 300 = x
\]
To combine the fractions, we first need a common denominator. The least common multiple of 4 and 8 is 8. We can rewrite \( \frac{1}{4}x \) in terms of eighths:
\[
\frac{1}{4}x = \frac{2}{8}x
\]
Now substituting back into the equation, we get:
\[
\frac{2}{8}x + \frac{3}{8}x + 300 = x
\]
Combining the fractions on the left side:
\[
\frac{2 + 3}{8}x + 300 = x
\]
This simplifies to:
\[
\frac{5}{8}x + 300 = x
\]
To isolate \( x \), we subtract \( \frac{5}{8}x \) from both sides:
\[
300 = x - \frac{5}{8}x
\]
This simplifies to:
\[
300 = \frac{3}{8}x
\]
Now, to find \( x \), we multiply both sides by \( \frac{8}{3} \):
\[
x = 300 \cdot \frac{8}{3}
\]
Calculating this gives:
\[
x = 300 \cdot \frac{8}{3} = 100 \cdot 8 = 800
\]
Thus, the total cost of the car is \( \boxed{800} \).
Can clarify the part where you got 100 multiplied by 8
GPT-4o mini
Sure! Let's walk through that step more carefully.
We arrived at the equation:
\[
x = 300 \cdot \frac{8}{3}
\]
This means we need to multiply 300 by \( \frac{8}{3} \).
To do this calculation:
1. **Divide 300 by 3**:
\[
300 \div 3 = 100
\]
2. **Now multiply the result by 8**:
\[
100 \cdot 8 = 800
\]
Thus, we found that:
\[
x = 800
\]
So, the total cost of the car is indeed \( \boxed{800} \).
Let me know if you have any more questions!
We arrived at the equation:
\[
x = 300 \cdot \frac{8}{3}
\]
This means we need to multiply 300 by \( \frac{8}{3} \).
To do this calculation:
1. **Divide 300 by 3**:
\[
300 \div 3 = 100
\]
2. **Now multiply the result by 8**:
\[
100 \cdot 8 = 800
\]
Thus, we found that:
\[
x = 800
\]
So, the total cost of the car is indeed \( \boxed{800} \).
Let me know if you have any more questions!
Thanks 😊
GPT-4o mini
You're welcome! 😊 If you have any more questions or need further assistance, feel free to ask. Happy studying!