conversations.from: human
conversations.value: I need help with this problem:
  Barney can perform 45 sit-ups in one minute. Carrie can do twice as many sit-ups per minute as Barney can.  And Jerrie can do 5 more sit-ups per minute than Carrie can do.  If Barney does sit-ups for 1 minute, and Carrie does sit-ups for two minutes, and Jerrie does sit-ups for three minutes, what would be the combined total number of sit-ups performed?
conversations.from: assistant
conversations.value: Carrie can do 2*45=90 sit-ups per minute.
  Jerrie can do 90+5=95 sit-ups per minute.
  In two minutes, Carrie would perform 90*2-180 sit-ups.
  And in three minutes, Jerrie would perform 3 * 95=285 sit-ups.
  Thus, in the scenario described, in total, the three would perform 45+180+285=510 sit-ups.