Question

The temperature from a factory furnace varies inversely as the square of the distance from the furnace.
The temperature 2 metres from the furnace is 50 degrees Celsius.
Calculate the temperature 3.5 metres from the furnace. Give your answer to 2 decimal places.

Answer 1

(1/d^2)K=T

Answer 2

K(1/2^2)K=50
K(1/4)=50
K=200

Answer 3

200(1/(3.5)^2)