Question

4. The salaries of a school cook, custodian, and bus driver are in the ratio 2:4:3. If their

combined monthly salaries for November total $8,280, what is the monthly salary for each
person?
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Answer 1

The monthly salaries for the school cook, custodian, and bus driver are $1,840, $3,680, and $2,760, respectively.

Step-by-step explanation:

To find the monthly salary for each person, we need to first determine the common ratio between their salaries. The given salaries are in the ratio 2:4:3. We can assign a constant to the ratio, such as 2x:4x:3x.

Next, we can set up an equation using the given information that the combined monthly salaries total $8,280:

2x + 4x + 3x = 8,280

9x = 8,280

To solve for x, we can divide both sides of the equation by 9:

x = 920

Now, we can find the monthly salary for each person by substituting x back into the ratio:

School cook's monthly salary: 2x = 2(920) = $1,840

Custodian's monthly salary: 4x = 4(920) = $3,680

Bus driver's monthly salary: 3x = 3(920) = $2,760

Answer 2

• cook: $1840
• custodian: $3680
• bus driver: $2760

Step-by-step explanation:

There are a total of 2+4+3 = 9 "ratio units", so each one is worth ...

$8,280/9 = $920

Multiplying the ratio by $920, we get ...

cook : custodian : bus driver = $920 × (2 : 4 : 3) = $1840 : $3680 : $2760