The task is to generate the correct answer for a given math problem.

[Q]: Problem: a train 800 m long can cross a pole in 10 sec and then find the speed of the train ?
[A]: 28


[Q]: Problem: the malibu country club needs to drain its pool for refinishing . the hose they use to drain it can remove 60 cubic feet of water per minute . if the pool is 60 feet wide by 100 feet long by 10 feet deep and is currently at 80 % capacity , how long will it take to drain the pool ?
[A]: 800


[Q]: Problem: a dog is tied to a tree by a long nylon cord . if the dog runs from the due north side of the tree to the due south side of the tree with the cord extended to its full length at all items , and the dog ran approximately 30 feet , what was the approximate length of the nylon cord , in feet ?
[A]:
10