The population of Linterhast was 3,600 people in 1990 and 4,800 people in 1993. If the population growth rate per thousand is constant, then what will be the population in 1996? Choose the correct choice from the following choices:  A) 6000  B) 6400  C) 7200  D) 8000  E) 9600
This is a set rate problem. If the population grew by 1,200 people in the past three years, then it grew by 33 percent:   4800−3600/3600=1200/3600=1/3≈33   Therefore in the next three years the population will grow at the same rate of 33% because the growth rate has been constant.   4,800+1/3∗4,800=4,800+1,600=6,400   Another approach is to backsolve by comparing the ratio of each answer to 4,800. For example, the ratio of 7,200 to 4,800 is not the same as the ratio of 4,800 to 3,600.   Answer: 6400
<result>B</result>
The population of Linterhast was 3,600 people in 1990 and 4,800 people in 1993. If the population growth rate per thousand is constant, then what will be the population in 1996?