(a)Over 4 months, a politician makes 8 return trips to Canberra in a Lamborghini and 4 return trips to Canberrainhisothercar,aFerrari.Accordingtothepolitician'sexpenseaccount,thetotalcostofpetrolforthese tripswas$4,000.Overthenext3months,thepoliticianmakes3returntripstoCanberraintheLamborghiniand 2 return trips to Canberra in the Ferrari. According to the expense account, the total cost of petrol for these trips was $2,000.

Assumingthatthedistancesandthepriceofpetrolremainconstant,whatisthecostofaonewaytriptoCanberra in the case of (i) the Lamborghini, (ii) the Ferrari? Given this, do you think the politician kept accurate records in his expense account? Why do you thinkthis?

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