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

The video tutorial explains a card problem where a pack contains 64 cards, equally divided into red and black. After removing 8 red cards, the task is to find the new ratio of red to black cards in its simplest form. The instructor demonstrates how to simplify the ratio from 24:32 to 3:4, akin to reducing a fraction. The tutorial emphasizes careful reading and understanding of the problem, highlighting key information, and methodically solving the problem to earn marks.

How many cards are there in total in the pack initially?

• 64

• 48

• 32

• 16

What is the initial ratio of red cards to black cards?

• 1 to 1

• 2 to 1

• 3 to 1

• 1 to 2

After removing 8 red cards, how many red cards are left?

• 24

• 8

• 16

• 32

What is the new ratio of red cards to black cards before simplification?

• 1 to 1

• 4 to 3

• 3 to 4

• 24 to 32

What is the simplified ratio of red cards to black cards?

• 3 to 4

• 2 to 3

• 1 to 2

• 4 to 5