Lottie buys a pack of 50 cans of lemonade. She makes a percentage profit of 25%.
Lottie sells 30 of the cans for 50p each. She sells the remaining cans for 25p each.
Work out how much Lottie paid for the cans.
222 exam-style questions on OCR GCSE Maths Percentage Change. Each one has a worked solution and a mark scheme showing where the marks go.