Doubt from periodic properties

I think your answer is correct

2.8 is the correct answer
https://www.toppr.com/ask/question/if-the-ionization-enthalpy-and-electron-gain-enthalpy-of-an-element-are-275-and86-kcal/

Nope 180.5 is right , 2.81 is on the pauling scale

but what is the unit in which we have to take ie and ege?