Comprehension Passage
A numerical machine accepts two values X and Y.
Then it updates these values as
X = 2XY and Y = Y + 1 in every step.
The machine stops at X > N.
If X = 2, Y = 3 and N = 500, what would be the value of X when the value of Y is 6?
1
780
2
860
3
960
4
840