Question

C=5/9 x (f - 32)

The equation above shows how temperature F, measured in degrees Fahrenheit, relates to a temperature C, measured in degrees Celsius. Based on the equation, which of the following must be true?

A temperature increase of 1 degree Fahrenheit is equivalent to a temperature increase of
5
9
degree Celsius.
A temperature increase of 1 degree Celsius is equivalent to a temperature increase of 1.8 degrees Fahrenheit.
A temperature increase of
5
9
degree Fahrenheit is equivalent to a temperature increase of 1 degree Celsius.
A) I only
B) II only
C) III only
D) I and II only

Answer 1

Let the initial reading be 0° C (implies 32° F)

Now  increasing temperature by 1° C implies present temperature is 1° C corresponds to (9/5 + 32)° F i.e increase in Fahrenheit scale is 9/5°

So a temperature increase of 1° C is equivalent to 9/5° F (option 2)

Similarly if we increase temperature from 32° F to 33° F i.e 1° F increase implies (5/9)° C increase (option 1)

Therefore answer is option D

Answer 2

D...option is the ryt one among all the others...