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5 June, 03:15

A lake has a large population of fish. On average, there are 2,400 fish in the lake, but this number can vary by as much as 155. What is the maximum number of fish in the lake? What is the minimum number of fish in the lake?

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  1. 5 June, 04:56
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    Minimum population of fish in lake = 2400 - 155 = 2245

    Maximum population of fish in lake = 2400 + 155 = 2555

    Step-by-step explanation:

    population of fish in lake = 2400

    Variation of fish = 155

    it means that while current population of fish is 2400, the number can increase or decrease by maximum upto 155.

    For example

    for increase

    population of fish can 2400 + 2, 2400 + 70, 2400 + 130 etc

    but it cannot be beyond 2400 + 155.

    It cannot be 2400 + 156

    similarly for decrease

    population of fish can 2400 - 3, 2400 - 95, 2400 - 144 etc

    but it cannot be less that 2400 - 155.

    It cannot be 2400 - 156

    Hence population can fish in lake can be between 2400 - 155 and 2400 + 155

    minimum population of fish in lake = 2400 - 155 = 2245

    maximum population of fish in lake = 2400 + 155 = 2555
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