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A farmer who grows strawberries defines a "workday yield" as

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A farmer who grows strawberries defines a "workday yield" as [#permalink] New post 16 Jan 2013, 08:34
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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!
[Reveal] Spoiler: OA

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Re: A farmer who grows strawberries defines a "workday yield" as [#permalink] New post 16 Jan 2013, 09:27
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(1) A workday yield is 45 liters
INSUFFICIENT: We dont know the total volume of crop to be picked
(2) The expected crop is 13,500 liters
INSUFFICIENT: We dont know the rate i.e. workday yield per worker.

Combining (1) and (2)
SUFFICIENT: Number of workers = (total crop volume)/(yield per day * number of days)
N = \frac{13500}{{(45)*(15)}} = 20

Hence choice(C) is the answer.
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Re: A farmer who grows strawberries defines a "workday yield" as [#permalink] New post 12 Jan 2014, 04:26
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
Re: A farmer who grows strawberries defines a "workday yield" as   [#permalink] 12 Jan 2014, 04:26
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