conversations.from: human
conversations.value: This math problem has got me stumped: The population of porcupines in a park is 50. The number of female porcupines is 3/5 of the total population. If each female porcupine gives birth to 4 babies every month, how many porcupines will be in the park after a year?
  Can you show me the way?
conversations.from: assistant
conversations.value: The number of female porcupines in the park is 3/5*50 = 30.
  In a month, the 30 female porcupines give birth to 30*4 = 120 new babies.
  After a year, with 12 months, the total number of new porcupines in the park is 120*12 = 1440
  The total population of porcupines in the park after a year is 50+1440 = 1490