A Fahrenheit and Celsius thermometer are both immersed in a fluid and indicate identical numerical readings. What is the temperature of the fluid express in ⁰Rankein and ⁰Kelvin?

Answer 1

The temperature of a fluid in which both C and F readings are the same is -40 C = -40 F.
See your previous post to convert those temperatures to Rankine.
Post your work if you get stuck.