conversations.from: human
conversations.value: I need help with this problem:
  Lee used to be able to run the 400-meter hurdles two seconds faster than Gerald would run the 400-meter hurdles.  But Gerald changed his diet, which improved his speed by 10%.  If Lee runs the 400-meter hurdles in 38 seconds, how fast can Gerald, with his improved diet, run the 400-meter hurdles, in seconds?
conversations.from: assistant
conversations.value: If Lee runs the 400-meter hurdles in 38 seconds, which was two seconds faster than Gerald used to run the 400-meter hurdles, then Gerald initially would run the 400-meter hurdles in 38+2=40 seconds.
  10% of 40 seconds is 40*0.1=4 seconds.
  The improved diet reduced Gerald's race time to 40-4=36 seconds.