Why given bellow code give the answer 60 ?

Question

var x=10;
x*=2;
while(x<30){
x+=5;
x=y;
}
alert(y+x);

Answer 1

x*=2; #x=20
while(x<30){
x+=5;
x=y;
}
After first itteration: x = y = 25
After second: x=y=30
alert(y+x); #30+30=60

Answer 2

In the while you mentioned x = y, so y and x are the same value in the end of the while cycle. Y automatically becomes 30. Every time in this cycle y becomes similar to x

Answer 3

What is y in this code? What is it's initial value?

Answer 4

10-20-30-0

Answer 5

i dont no🤷‍♂️