LOGIC: The difference between 1st number and 2nd number is divisible by 3(1): 24 - 21 = 3 ? divisible by 3(2): 44 - 22 = 22 ? does not divisible by 3.(3): 62 - 23 = 39 ? divisible by 3.(4): 84 - 24 = 60 ? divisible by 3.Hence, the correct answer is "44 - 22".Alternate Method LOGIC: Difference of Sum of Digits of First Number and Second Number is divisible by 3(1): (2 + 4) - (2 + 1) = 6 - 3 = 3 ? divisible by 3(2): (4 + 4) - (2 + 2) = 8 - 4 = 4 ? does not divisible by 3.(3): (6 + 2) - (2 + 3) = 8 - 5 = 3 ? divisible by 3(4): (8 + 4) - (2 + 4) = 12 - 6 = 6 ? divisible by 3Hence, the correct answer is "44 - 22".