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

The video tutorial explains how to calculate the maximum number of shortbread biscuits Tariq can make with limited ingredients. It involves dividing the available quantities of butter, sugar, and flour by the required amounts for a batch of biscuits. The limiting factor is identified as flour, allowing for the production of 20 biscuits. The tutorial also outlines the steps needed to earn full marks for the problem.

What are the required ingredients for making 8 shortbread biscuits?

• 120 grams of butter, 60 grams of sugar, 180 grams of flour

• 100 grams of butter, 50 grams of sugar, 150 grams of flour

• 130 grams of butter, 70 grams of sugar, 190 grams of flour

• 110 grams of butter, 55 grams of sugar, 175 grams of flour

How many biscuits can Tariq make with 330 grams of butter?

• 3

• 4

• 3 and 3/4

• 3 and 1/2

What is the simplified fraction for the sugar calculation?

• 3/4

• 10/3

• 5/2

• 2/3

Which ingredient limits the number of biscuits Tariq can make?

• Butter

• Sugar

• Flour

• Eggs

What is the maximum number of biscuits Tariq can make?

• 18

• 22

• 20

• 24