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Q17: Answers – Paper 2 – June 2019
Q17: Answers – Paper 2 – June 2019
Mark Scheme
Working
There are some small cubes and some large cubes in a bag.
The cubes are red or the cubes are yellow.
The ratio of the number of small cubes to the number of large cubes is 4 : 7
The ratio of the number of red cubes to the number of yellow cubes is 3 : 5
a) Explain why the least possible number of cubes in the bag is 88
There are some small cubes and some large cubes in a bag.
The cubes are red or the cubes are yellow.
The ratio of the number of small cubes to the number of large cubes is 4 : 7
The ratio of the number of red cubes to the number of yellow cubes is 3 : 5
a) Explain why the least possible number of cubes in the bag is 88
All the small cubes are yellow.
b) Work out the least possible number of large yellow cubes in the bag.
Question
17)
There are some small cubes and some large cubes in a bag.
The cubes are red or the cubes are yellow.
The ratio of the number of small cubes to the number of large cubes is 4 : 7
The ratio of the number of red cubes to the number of yellow cubes is 3 : 5
a) Explain why the least possible number of cubes in the bag is 88
There are some small cubes and some large cubes in a bag.
The cubes are red or the cubes are yellow.
The ratio of the number of small cubes to the number of large cubes is 4 : 7
The ratio of the number of red cubes to the number of yellow cubes is 3 : 5
a) Explain why the least possible number of cubes in the bag is 88
[1 mark]
All the small cubes are yellow.
b) Work out the least possible number of large yellow cubes in the bag.
[3 marks]