Question

int x=10; x+=5; gives the value of x as 5,15,6 or 16?

Answer 1

13
Because, x=10, given.
So, x+5= 10+5= 15 (Just plug in the value 10 in place of x)

Answer 2

Thanks a lot but I missed something in that question and the question is:
int x =10; x+=5; gives the value of x as there is four options for answer 5,15,6 or 16.