fozzzy wrote:

A farmer who grows strawberries defines a "workday yield" as the number of liters of strawberries that a worker is required to pick in one day. Based on this definition, how many workers must the farmer hire to pick the entire expected crop of strawberries in 15 calendar days?

(1) A workday yield is 45 liters

(2) The expected crop is 13,500 liters

Please provide detailed explanations! Thanks!

The stem asks us, given

W*L = 15*(WY), what W is.

1) This solves for WY, but we still have 2 unknowns so 1) is insufficient

2) This solves for L, but we still have 2 unknowns so again, insufficient

1 + 2: These solve for WY and L, thus we can solve for W. Sufficient