why it producing float value for the both given integer value multiplication

Question

Float o/p ?

Answer 1

if you do 10/2 you get an float
if you do 10//2 you get an int
if you do round(10/2) you get an int
(floor and ceil of course too)

Answer 2

Ohh really ?

Answer 3

Why double slash do that ..
What's the diff