Cereal Mix
Age 11 to 14
Challenge Level 
A farmer is supplying a mix of seeds, nuts and dried apricots to a manufacturer of crunchy cereal bars.
The ingredients cost:
-
dried apricots $ £7$ per kg
-
nuts $ £6$ per kg
-
seeds $ £4$ per kg
He has been asked to supply a mix which costs $ £5$ per kg.
What combination of ingredients could he supply?
Is there a relationship between the amounts of each ingredient that he could supply?
You may also like
Rule of Three
If it takes four men one day to build a wall, how long does it take 60,000 men to build a similar wall?
How Big?
If the sides of the triangle in the diagram are 3, 4 and 5, what is the area of the shaded square?