Logic: Here first number is cubed then after 4 is added to resultant. 6 : 220 63 = 216, 216 + 4 = 220 Now check the option one by one, 1) 11 : 1331 113 = 1331 2) 8 : 516 83 = 512, 512 + 4 = 516 Here option 2) is correct so no need to check other options. Hence the correct answer is 8 : 516