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The temperature (T^@C) at a depth x km b...

The temperature `(T^@C)` at a depth x km below the surface of the earth is given by
`t=30+25(x-3)` where`4lexle16`.
If the depth below the surface of earth is between `9.8km` and `13.8km` , find the range of temperature.

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The correct Answer is:
Between `200^@C` and `300^@C`
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