In an experiment, a heated cup of coffee is removed from a heat source, and the cup of coffee is then left in a room that is kept at a constant temperature. The graph above shows the temperature, in degrees Fahrenheit (F^o), of the coffee immediately after being removed from the heat source and at 10-minute intervals thereafter.
Of the following, which best approximates the temperature, in degrees Fahrenheit, of the coffee when it is first removed from the heat source?

The correct answer is: 195

○        The concept used in this question is concept of reading and analyzing the graph.
○        On x-axis, 1 box = 10 minute.
○        On y-axis 1 box = 20 F^o

• Step by step explanation:

○        Given:
Graph which shows the relation time and temperature of coffee cup.
○        Step 1:
○        At t = 0, point is between 180 and 200 but close to 200.
After analysing the options the number closest to 200 is 195.
∴ 195 F^o is temperature of cup just after removed from heat source.

• Final Answer:

The Correct option is,
Option D. 195.