Question

12/15 ratios and proportions
3 kg of apples cost $4.50. what is the cost of 1 kg?

Explanation:

Step1: Identify the problem type

This is a proportion problem where we need to find the unit cost (cost per 1 kg) of apples. We know the cost of 3 kg, so we can use division to find the cost of 1 kg.

Step2: Set up the division

To find the cost of 1 kg, we divide the total cost by the total weight. The total cost is $4.50 and the total weight is 3 kg. So we calculate $\frac{4.50}{3}$.

Step3: Perform the division

$4.50 \div 3 = 1.50$.

Answer:

The cost of 1 kg of apples is $1.50.