Foundation June 2022 Paper 3 Q8

8 In this question use \(\quad\) 1 litre \(=\) 1000 millilitres

A mixture is made using white paint and red paint.

amount of white paint \(=\) amount of red paint \(\div\) 7

5.6 litres of red paint will make more than 6 litres of the mixture.

How much more?

Give your answer in millilitres. [4 marks]

Mark scheme

Answer	Mark	Comments
Alternative method 1
\(5.6 \div 7\) or 0.8	M1	oe
\(5.6 +\) their 0.8 or 6.4	M1	oe their 0.8 must not be 0.4 and must be less than 5.6
their \(6.4 - 6\) or 0.4	M1dep	oe dep on 2nd M1
400	A1	SC1 any correct conversion litres to millilitres with M0 scored
Alternative method 2
\(5.6 \times 1000\) or 5600 or \(6 \times 1000\) or 6000 or \(5.6 \div 7\) or 0.8	M1	oe
their \(5600 \div 7\) or their \(0.8 \times 1000\) or 800	M1	oe their 5600 must include the digits 56 consecutively their 0.8 must not be 0.4 and must be less than 5.6
their \(5600 +\) their \(5600 \div 7\) or their \(5600 +\) their \(0.8 \times 1000\) or 6400	M1dep	oe their 5600 must include the digits 56 consecutively their 0.8 must not be 0.4 and must be less than 5.6 dep on 2nd M1
400	A1	SC1 any correct conversion litres to millilitres with M0 scored

Up to M3 may be awarded for correct work, with no or incorrect answer, even if this is seen amongst multiple attempts
Beware of 0.4 or 400 from incorrect working
6400 or 0.4 (not from incorrect working)	M1M1M1
0.9 and 6.5 and 0.5 or 0.9 and 6.5 and 500 (500 implies 0.5)	M0M1M1A0
\(560 \div 7\) and \(560 + 80\) (560 includes the digits 56 consecutively)	M0M1M1A0
560 and 80 and 640	M0M1M1A0
560 and 600 and 80 and 40	M0M1M1A0
In Alt 2, \(0.0056 \div 7\) (0.0056 includes the digits 56 consecutively)	M0M1