conversations.from: human
conversations.value: Thomas has been saving $40 in the bank every month for six years. His friend Joseph has been saving 2/5 times less money per month. How much money are they having in their savings account altogether?
  Give me a solution to this problem
conversations.from: assistant
conversations.value: Thomas has been saving for six years, and since each year has 12 months, he has been making savings for 6*12 = 72 months.
  Since Thomas has been saving $40 in the bank every month for six years, he has saved 72*$40 = $2880
  Joseph has been saving 2/5 times less money per month than Thomas, meaning he has been saving 2/5*$40 = $16 less per month.
  The total amount of money that Joseph has been saving per month is $40-$16 = $24
  In six years, Joseph has saved $24*72 = $1728
  Together, they have saved a total of $2880+$1728 = $4608