Question

Amy bought 0.4 kilogram of tomatoes for $4.00. What is the cost in dollars per kilogram of tomatoes?

Answer 1

Cost of 0.4 kg = $4
Cost of 1kg= 4÷0.4 =$10

Answer 2

The cost of tomatoes of 0.4 kg is $4 and cost of 1kg is equal to 4/0.4=$10.

It denotes per kilogram and thus it includes cost of tomatoes taken at right level when buying tomatoes at average cost. So, Amy bought tomatoes at $10.

With the increase in price of tomato, the cost may be converted in Dollar value.