GCSE Secondary Maths Age 13-17 - Algebra: Algebra - Explained

The video tutorial explains an algebra problem involving the ages of three individuals: Ali, Vera, and Cerise. Ali's age is represented by 'y', Vera is twice Ali's age, and Cerise is three years younger than Ali. The sum of their ages is 125. The tutorial guides through setting up an equation, solving it to find the ages, and explains the mark allocation for the problem.

If Ali is 'y' years old, how old is Vera?

• y - 3

• y + 3

• y / 2

• 2y

What is the relationship between Cerise's age and Ali's age?

• Cerise is 3 years younger than Ali

• Cerise is twice as old as Ali

• Cerise is 3 years older than Ali

• Cerise is the same age as Ali

What is the equation formed to find the sum of their ages?

• 2y + 3y = 125

• y + y + y = 125

• y - 3 = 125

• y + 2y + y - 3 = 125

After solving the equation, what is Ali's age?

• 29

• 125

• 32

• 64

How many marks are allocated for writing down Vera's and Cerise's ages in terms of 'y'?

• 4 marks

• 3 marks

• 2 marks

• 1 mark