Base conversion — convert hexadecimal 16₁₆ to its decimal value. Choose the correct decimal equivalent of the hex number 0x16.

Difficulty: Easy

Correct Answer: 2210

Explanation:


Introduction / Context:
Hexadecimal numbers use base 16 with digits 0–9 and A–F (10–15). Converting a two-digit hex number to decimal reinforces positional weights of 16^1 and 16^0.


Given Data / Assumptions:

  • Hex value: 16₁₆ (digits 1 and 6)
  • Weights: 16^1 and 16^0


Concept / Approach:
Expand by positional weights: value = 116^1 + 616^0 = 16 + 6 = 22. Append the base “10” subscript style in the choices as provided (2210).


Step-by-Step Solution:

16^1 = 16, 16^0 = 1Compute: 116 + 61 = 16 + 6Total = 22 ⇒ 2210


Verification / Alternative check:
Convert to binary first: 0x16 = 0001 0110₂. Binary 00010110₂ = 16 + 4 + 2 = 22₁₀, confirming the same result.


Why Other Options Are Wrong:

  • 1610, 2010, 2410: incorrect arithmetic of the hex digits.
  • 1010: equals decimal 10, unrelated.


Common Pitfalls:

  • Confusing the string “16” with the base; here “16” is the hex value, not the base indicator.


Final Answer:
2210

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