<PRE><B>Question 1043452</B>

 A painter has to paint the walls and ceiling of a room. He calculates that he will require 4 litres of paint. The paint is sold as follows:
1 litre costs $24. 
2 litres cost twice as much as 1 litre less 25%, 
2 litres costs 0.75(2*24) = 0.75(48) = $36
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4 litres cost twice as much as 2 litres less 25%. 
4 litres costs 0.75(2*36) = $54
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How much is the paint going to cost him?:: $54
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Cheers,
Stan H.</PRE>