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ogagoitsiwe:
A farmer has to transport 20 people and 32 sheep to a market. He can use either Fiats (x) which take 2 people and 1 sheep, or Rolls Royce's (y) which takes 2 people and 4 sheep. He must not use more than 15 cars altogether. a) what is the lowest total number of cars he should use? b) if it costs $10 to hire each Fiat and $30 to hire each Rolls Royce's. What is the cheapest solution?
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