Give the step-by-step reasoning process and then the final answer. Christi saw twice as many black bears as white bears and 40 more brown bears than black bears in a national park. If the number of black bears in the park is 60, calculate the population of bears in the park.
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If there are 60 black bears in the park and 40 more brown bears than black bears, there are 60 + 40 = 100 brown bears. The number of black and brown bears in the park is 100 + 60 = 160. Twice the number of black bears as white bears means 60 / 2 = 30 white bears. The population of bears in the national park is 30 + 160 = 190.
The final answer: 190.
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