A farmer who grows strawberries defines a "workday yiel

[BTGmoderatorDC]

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

OA C

Source: GMAT Prep

[Jay@ManhattanReview]

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

OA C

Source: GMAT Prep

The volume of the entire expected crop of strawberries = Workday yield * Number of calendar days * Number of workers

Let's take each statement one by one.

(1) A workday yield is 45 liters.

We do not know 'the volume of the entire expected crop of strawberries,' can't get the value of Number of workers. Insufficient.

(2) The expected crop is 13,500 liters.

We do not know 'the workday yield,' can't get the value of Number of workers. Insufficient.

(1) and (2) together

From The volume of the entire expected crop of strawberries = Workday yield * Number of calendar days * Number of workers, we have

13,500 = 45 * 15 * Number of workers

=> Number of workers = 20. Sufficient.

The correct answer: C

Hope this helps!

-Jay
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