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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?
If it takes four men one day to build a wall, how long does it take 60,000 men to build a similar wall?
If the sides of the triangle in the diagram are 3, 4 and 5, what is the area of the shaded square?