Month - June, July August
Number of days worked - 20(June), 17(July), 19 (Aug)
The table above shows the number of days worked by a certain sales representative in each of three months last year. If the number of sales calls that the representative made each month was proportional to the number of days worked in that month and if the representative made a total of 168 sales calls in the three months shown, how many sales calls did the representative make in August?
Can someone explain the proportion concept? Thanks.