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21 December, 06:16

A family built a house in a beach resort area. In 1990, the house was 430 ft from the water. With erosion, the house was 400 ft from the water in 2000.

In what year will the house be only 250 ft from the water?

a.

1990

c.

2015

b.

2004

d.

2050

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Answers (1)
  1. 21 December, 07:58
    0
    Let of decrease = (430 - 400) / 10 = 30/10 = 3

    Number of years from 2000 it took the house to get to 250 ft = (400 - 250) / 3 = 150/3 = 50

    Required year is 2050.
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