Quote:
SliceCo, a company that sells knives, is structured so that each of its x regional sales directors has y salespeople working for that director. If, for the month of May, SliceCo sold exactly 2,200 knives, how many regional directors worked for SliceCo that month?
Let number of director be x and salesperson be y
To determine x.
(1) Each regional director sold 150 knives, and each salesperson sold 80 knives.150x + 8y = 2200
Simplifying:
x = (220 - 8y)/15
Possible values of x and y are:
when x = 12, then y = 5
When x = 4, then y = 20
Insufficient
(2) Each regional director had 5 salespeoplex cannot be calculated
Insufficient
(1)+(2);y=5, x = 12
Sufficient
IMO C _________________
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