Final answer:
Emily made a profit by selling water bottles, and her percentage profit is approximately 6.38%.
Step-by-step explanation:
To calculate Emily's percentage profit from selling bottles of water, we first determine the total cost and the total revenue. Emily bought a pack of 12 bottles for £5.64 and sold each bottle for 50p, which totals £6 (£0.50 x 12). The profit is the difference between the selling price and the cost price, which is £6 - £5.64 = £0.36.
Next, percentage profit is calculated by dividing the profit by the cost price and then multiplying by 100 to convert to a percentage. The formula used is:
Percentage Profit = (Profit / Cost Price) x 100
Therefore, Emily's percentage profit is:
(£0.36 / £5.64) x 100 = 6.38%
Emily's percentage profit after selling the bottles of water she bought for £5.64 at 50p each is approximately 6.38%. This was calculated by dividing the profit by the cost price and multiplying by 100.