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The sum of two numbers is 44, and the difference between the first and second is 4. What is the ratio of the two numbers?

A. 6:7
B. 5:6
C. 6:5
D. 7:9
E. None


Sagot :

To solve the problem, we need to find two numbers whose sum is 44 and whose difference is 4. We will then calculate the ratio of these two numbers.

Step-by-Step Solution:

1. Set up the equations:
Let the first number be [tex]\( x \)[/tex] and the second number be [tex]\( y \)[/tex].

From the problem statement, we have two key pieces of information:
[tex]\[ x + y = 44 \quad \text{(Equation 1)} \][/tex]
[tex]\[ x - y = 4 \quad \text{(Equation 2)} \][/tex]

2. Solve the system of equations:
We can solve these equations simultaneously to find the values of [tex]\( x \)[/tex] and [tex]\( y \)[/tex].

- Add the two equations:
[tex]\[ (x + y) + (x - y) = 44 + 4 \][/tex]
Simplifying this,
[tex]\[ 2x = 48 \][/tex]
[tex]\[ x = 24 \][/tex]

- Substitute [tex]\( x \)[/tex] back into Equation 1:
[tex]\[ 24 + y = 44 \][/tex]
Solving for [tex]\( y \)[/tex],
[tex]\[ y = 44 - 24 \][/tex]
[tex]\[ y = 20 \][/tex]

So, the two numbers are [tex]\( x = 24 \)[/tex] and [tex]\( y = 20 \)[/tex].

3. Calculate the ratio of the two numbers:
The ratio of the first number to the second number is:
[tex]\[ \frac{x}{y} = \frac{24}{20} \][/tex]

4. Simplify the ratio:
[tex]\[ \frac{24}{20} = \frac{24 \div 4}{20 \div 4} = \frac{6}{5} \][/tex]

Therefore, the ratio of the two numbers is [tex]\( 6:5 \)[/tex].

Answer:
The ratio of the two numbers is [tex]\( 6:5 \)[/tex], which corresponds to option [tex]\( c. 6:5 \)[/tex].
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