Answer:
84 cases
Explanation:
The amount of money need to be raised = $ 500
Selling price of each ball = $2
1 Tennis case = 3 balls.
Earnings = Selling Price of each ball x Number of balls sold
Quantity sold = Earnings / Selling Price of each ball
Quantity sold = $ 500 / $ 2 = 250 balls
Using direct proportions
1 case = 3 balls
? cases = 250 balls
No.cases = 250 balls / 3 balls = 83.333
Note: Minimum number of cases required are 83.3333 to earn $ 500; however, we can not sell 0.3333 number of cases, hence, we will sell atleast 84 cases.