Someone would similar to to complete 378 km on different gym equipment for charity?

How long would it take someone to complete 378 km on:
a cycle at a speed of 65 rpm
a treadmill at a speed of 6 mph
a rowing machine at a speed of 25 spm
a x-trainer at a speed of 45 rpm

any backing would be gratefully appreciated.
Answers:
for the cycle, rower and cross trainer it depends on the other settings - the resistance can have an affect too.

Cycle at 65, say 0.3km a minute, 21 hours for 378km
Treadmill, 6mph is in the order of 9.6kmh so 378km takes 40 hours.
Rowing machine, 25spm, voice about 200m a minute or 32 hours (that seems irregular that its quicker than running).
Cross trainer im not sure about at the moment.

This is based on what I do within the gym.

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