###Human: A Statistics student wants to find out the average daily allowance of the middle school students. According to his survey, 2/3 of the students receive an average of $6 allowance per day while the rest gets an average of $4 a day. If he surveyed 60 students, what is the total amount of money those 60 students get in a day?, ### Assistant: There are 60 students x 2/3 = 40 students who have a $6 daily allowance.
While there are 60 students - 40 students = 20 students who have a $4 daily allowance.
The sum of the allowances of the 40 students who received $6 daily is 40 students x $6/day = $240.
The sum of the allowances of the 20 students who received $4 daily is 20 students x $4/day = $80.
The total daily amount of money of those 60 students is $240 + $80 = $320. 
 So the answer is :  320