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?

5 answers

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 \( \boxed{800} \).

Can clarify the part where you got 100 multiplied by 8

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!

Thanks 😊

You're welcome! 😊 If you have any more questions or need further assistance, feel free to ask. Happy studying!