conversations.from: human
conversations.value: Please show me the solution for: Jim reads at a rate of 40 pages an hour.  He reads a total of 600 pages per week.  He increases his reading speed to 150% of its former speed but reads 4 hours less per week.  How many pages does he read a week now?
conversations.from: assistant
conversations.value: He read 600/40=15 hours per week
  So now he reads 15-4=11 hours per week
  She now reads 40*1.5=60 pages per hour
  So she reads 11*60=660 pages per week