Answers

2014-07-12T21:16:26+08:00
Time=distane/speed
 time= 40 000ft/500ml/hr.
convert 40000ft to ml
=7.56ml
t=7.56ml/500ml/hr
t=0.01512hr.

   im not sure if my solution is right..  thats my own ans .. hehe :-)
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