The decimal value of 4A9-2B is

To convert the hexadecimal number 4A9.2B₁₆ (where the hyphen in the question represents the radix point) to its decimal equivalent, we calculate the sum of each digit multiplied by its positional power of 16:

• Integer Part (4A9):
  (4 × 16²) + (10 × 16¹) + (9 × 16⁰)
  = (4 × 256) + (10 × 16) + (9 × 1)
  = 1024 + 160 + 9 = 1193
• Fractional Part (.2B):
  (2 × 16^-1) + (11 × 16^-2)
  = (2/16) + (11/256)
  = 0.125 + 0.04296875 = 0.16796875

Combining the two parts gives 1193.16796875. Truncating to four decimal places as per the options, we get 1193.1679, which matches Option A.