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Question 4: SAILING SHIPSBog'liq PISA 2012 items for release ENGLISHQuestion 4: SAILING SHIPS
PM923Q04 – 0 1 9
Due to high diesel fuel costs of 0.42 zeds per litre, the owners of the ship
NewWave
are thinking about equipping their ship with a kite sail.
It is estimated that a kite sail like this has the potential to reduce the diesel
consumption by about 20% overall.
The cost of equipping the
NewWave
with a kite sail is 2 500 000 zeds.
After about how many years would the diesel fuel savings cover the cost of the kite
sail? Give calculations to support your answer.
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Number of years: ....................................
Translation Note: Change to , instead of . for decimal points, if that is your standard
usage.
Name:
NewWave
Type: freighter
Length: 117 metres
Breadth: 18 metres
Load capacity: 12 000 tons
Maximum speed: 19 knots
Diesel consumption per year without a kite sail: approximately 3 500 000 litres
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