conversations.from: human
conversations.value: James can do a farmer's walk with 300 pounds per hand for 20 meters.  He can lift 30% more if he only goes 10 meters.  In addition, lifting straps give him another 20%.  How much can he move with lifting straps for 10 meters if he increases his 20-meter distance without straps by 50 pounds and everything else increases in proportion?
  What is the solution?
conversations.from: assistant
conversations.value: After the increase, he can lift 300+50=350 pounds
  Decreasing the distance increase the amount he can lift by 350*.3=105 pounds
  So he can lift 350+105=455 for 10 feet
  The straps add another 455*.2=91 pounds
  So his total weight is 455+91=546 pounds per hand