Question

a difference of temperature of 25 degree celcious is equivalent to a difference of.
a)45c
b)72c
c)32c
d)25c

Answer 1

I think you asked wrong question.
question should be ---->
a difference of temperature of 25°C is equivalent to a different of
(a) 45K
(b) 72K
(c) 32K
(d) 25K
or,
(a) 45°F
(b) 72°F
(c) 32°F
(d)25°F

Let's try to solve both questions one by one.
you should a important formula,
$\frac{C-0}{100}=\frac{K-273}{100}=\frac{F-32}{180}$
here, C denotes Celsius , F denotes farhenhiet and K denotes Kelvin.
here you should also know,
change in °C = change in K
but change in °C = 5/9 × change in °F

now, given change in °C = 25
then, change in K = 25
so, option (d) is correct in Kelvin related question.
and change in °F = 9/5 × 25 = 45°F
so, option (a) is correct in farhenhiet related question.