If coffee is made from two components A and B in a ratio of 2:3. If the prices of these items are 300 and 500 per kg respectively, then the price of coffee per kg is ____.

420

460

550

None of these

To find the price of coffee per kilogram, we need to calculate the weighted average of the prices of components A and B based on their ratio.

1. Calculate the total price of the components:

- Let the weight of component A be 2 units and the weight of component B be 3 units.

- The total price of component A is 2 units * $300/kg = $600.

- The total price of component B is 3 units * $500/kg = $1500.

2. Calculate the total weight of the components:

- The total weight is 2 units + 3 units = 5 units.

3. Calculate the price of coffee per kilogram:

- Divide the total price of the components by the total weight:

- $600 + $1500 = $2100.

- $2100 / 5 units = $420 per kilogram.

Therefore, the price of coffee per kilogram is $420.