Final answer:
The subject is Mathematics which involves calculating the cost of items based on their weight. By dividing or multiplying, one can find the unit price or the total cost for a given quantity. Examples include calculating the cost of potatoes, carrots, and various fruits.
Step-by-step explanation:
The question involves finding the cost of items based on their weight and price per unit weight. To solve this, we need to apply basic arithmetic operations such as multiplication and division.
Example Calculation
For instance, if the cost of 5kg of potatoes is £3.40, then the cost for 1kg would be £3.40 divided by 5, which is £0.68. Similarly, if the cost of 1/2kg of carrots is 32p, we can find the cost of 1kg by doubling the price, resulting in 64p for 1kg of carrots.
Let's also look at an example with different fruits and their costs from the provided information:
- For apples, the cost is calculated by multiplying the number of apples by the cost per apple, so for 10 apples at 50 cents each, the total cost is $5.00.
- For bananas, 12 bananas at 20 cents each will be 12 × $0.20, which equals $2.40.
- Similarly, 2 bunches of grapes at 65 cents each is 2 × $0.65, totaling $1.30.
- For raspberries, 1 pint at $2 each will simply cost $2.00.
These calculations are essential in day-to-day life, especially when comparing prices or handling money. It's important to be precise and mindful of the units involved in the calculations.