Q7. Apple and mango cordail should be made with 1/3 cordial and 2/3 water.
Kate puts 100ml of cordail in a glass. How much water should she put with it?

Q8. Tow boxes each have the same mass. They are weighed together with a larger box that weighs 2.6kg. In total, all three boxes weigh 5kg. What is the mass of one small box? thanks to all who help me with this work.