Why answer is 6.0 why not 6

Answer 1

"Using a single slash to divide numbers produces a decimal (or float, as it is called in programming)."
(4+8)/2 = 12/2 = 6.0
https://www.sololearn.com/learn/JUMP_LINK__&&__Python__&&__JUMP_LINK/2271/

Answer 2

//Hey Raju Nayak can you describe your question clearly so community can help you.

//If you are talking about float value then it can be 6.0