Steve Lumber sells airbeds. To celebrate the 10th anniversary of his store opening, he decides to hold a competition to see who can blow up an airbed in the least time. In order to showcase his range, he uses three different airbeds. Contestant 1 has a standard single bed with a volume of 150 litres, and will be using an air compressor which will deliver between 26 and 30 litres per minute.
Contestant 2 has a double bed with a volume of 450 litres and has a 0.5-litre hand pump, which she can operate at 3 pumps per second.
Contestant 3 has a queen-sized bed, also with a volume of 450 litres, and is equipped with a 3-litre foot pump which he can operate at 25 pumps per minute.
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Which one of the following outcomes is possible?
A Contestants 1 and 2 complete the race at the same time
B Contestants 1 and 3 complete the race in the same time
C Contestant 3 wins by 1 minute
D Contestant 1 wins by more than 1 minute