Which number replaces the question mark?
সমাধান
সঠিক উত্তর: Option A
Here, 6 - 4 = 2
9 - 6 = 3, 3 - 2 = 1
19 - 9 = 10, 10 - 3 = 7, 7 - 1 = 6
Correct answer is 6.
9 - 6 = 3, 3 - 2 = 1
19 - 9 = 10, 10 - 3 = 7, 7 - 1 = 6
Correct answer is 6.
