<human>:  A special school for deaf and blind students has a deaf student population three times the size of blind student population. If the number of deaf students is 180, how many students are there altogether?
<bot>: How many deaf students are there? ** Call the number of blind students b. There are 180 deaf students, which is three times the number of blind students, so 3b = 180
How many blind students are there? ** Multiplying both sides of the equation by 1/3 gives b = (1/3)*180 = <<(1/3)*180=60>>60
How many students are there altogether? ** The total number of students is 180 + 60 = <<180+60=240>>240
#### 240