GCSE Secondary Maths Age 13-17 - Ratio, Proportion & Rates of Change: Direct Proportion - Explained

The video tutorial explains how to solve two math problems related to a pancake recipe. The first problem involves calculating the amount of flour needed to make 30 pancakes, given a recipe for 10 pancakes. The solution involves multiplying the flour quantity by three. The second problem requires determining how many pancakes can be made with 750 milliliters of milk, using a recipe that requires 300 milliliters for 10 pancakes. The solution involves dividing the milk quantity and multiplying by the number of pancakes per recipe. Each problem is worth two marks, with one mark for the calculation method and one for the correct answer.

What are the ingredients needed to make 10 pancakes?

• 200 milliliters of milk, 100 grams of flour, and 1 egg

• 300 milliliters of milk, 120 grams of flour, and 2 eggs

• 250 milliliters of milk, 110 grams of flour, and 2 eggs

• 400 milliliters of milk, 150 grams of flour, and 3 eggs

How much flour is needed to make 30 pancakes?

• 400 grams

• 300 grams

• 360 grams

• 240 grams

If the recipe for 10 pancakes requires 300 milliliters of milk, how many pancakes can be made with 750 milliliters?

• 20 pancakes

• 30 pancakes

• 25 pancakes

• 15 pancakes

What is the first step to determine how many pancakes Tara can make with 750 milliliters of milk?

• Add 300 to 750

• Divide 750 by 300

• Subtract 300 from 750

• Multiply 750 by 10

How many times does 300 milliliters go into 750 milliliters?

• 2 times

• 1.5 times

• 3 times

• 2.5 times