Select the option that is related to the third number in the same way as the second number is related to the first number:
8 : 516 : : 4 : ?
Answer & explanation
Correct answer: option 3
a : a3 + \(\frac{a}{2}\)
8 : 83 + \(\frac{8}{2}\) = 512 + 4 = 516
4 : 43 + \(\frac{4}{2}\) = 64 + 2 = 66