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The ratio of two numbers is [tex]$8:3$[/tex]. The sum of these numbers is 33. What is the positive difference between the two numbers?

Sagot :

To solve the problem where the ratio of two numbers is 8:3 and their sum is 33, we can follow these steps:

1. Define the Ratio Variables:
Let's denote the two numbers as [tex]\(8x\)[/tex] and [tex]\(3x\)[/tex]. Here, [tex]\(x\)[/tex] is a common multiple that maintains the ratio between the two numbers.

2. Set Up the Sum Equation:
According to the problem, the sum of the two numbers equals 33.
[tex]\[ 8x + 3x = 33 \][/tex]

3. Simplify the Equation:
Combine the terms on the left side of the equation.
[tex]\[ 11x = 33 \][/tex]

4. Solve for [tex]\(x\)[/tex]:
Divide both sides of the equation by 11 to find the value of [tex]\(x\)[/tex].
[tex]\[ x = \frac{33}{11} = 3 \][/tex]

5. Calculate the Actual Numbers:
Substitute [tex]\(x = 3\)[/tex] back into the expressions for the numbers.
[tex]\[ \text{First number} = 8x = 8 \times 3 = 24 \][/tex]
[tex]\[ \text{Second number} = 3x = 3 \times 3 = 9 \][/tex]

6. Find the Positive Difference:
Subtract the second number from the first to obtain the positive difference.
[tex]\[ \text{Positive difference} = |24 - 9| = 15 \][/tex]

Therefore, the positive difference between the two numbers is:
[tex]\(\boxed{15}\)[/tex]