Give the step-by-step reasoning process and then the final answer. 40% of a farmer's cattle are males. The rest are females. If a female cow produces 2 gallons of milk a day, how much milk will the farmer get a day if he has 50 male cows?
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The farmer has 125 cows because 50 / .4 = 125. The farmer has 75 female cows because 125 x .6 = 75. The farmer will get 150 gallons of milk a day because 75 x 2 = 150.
The final answer: 150.
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