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

The video tutorial explains a problem involving the number of cousins each person has. Nisha has six cousins, Becky has twice as many as Nisha, and David has twice as many as Becky. The solution is worked out step-by-step, showing that David has 24 cousins. The video also explains the marks allocation for solving the problem, with one mark for calculating Becky's cousins and another for David's.

If Nisha has 6 cousins, how many cousins does Becky have?

• 6

• 12

• 18

• 24

What is the relationship between the number of cousins David has compared to Becky?

• David has the same number of cousins as Becky.

• David has half as many cousins as Becky.

• David has twice as many cousins as Becky.

• David has three times as many cousins as Becky.

How many cousins does David have?

• 30

• 24

• 18

• 12

How many marks were allocated for calculating Becky's cousins?

• Two marks

• Three marks

• One mark

• No marks

What was the total number of marks for the question about David's cousins?

• Four marks

• Three marks

• One mark

• Two marks