exam Maths Puzzle Numerical Ability

Employees use two methods to refinidh a chair. Method I takes 1 hour and cost $3. Method II takes 1 1/2 hour and cost $1.50. Last week, they took 36 hours and spen t $60. How many did they refinish with each method?

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exam Other Question
(a) A couple drive to France to buy wine. They pay £100 return fare to use the tunnel, €80 for two nights accommodation, and use 30 litres of diesel on the journey (15 litres going find the valve of T, if t/12= -18