What is the decimal equivalent of Hexadecimal number 31?
- AOption (a)
49
- BOption (b)
42
- COption (c)
48
- DOption (d)
41
View answer & explanationHide answer & explanation
Correct answer
49
Why this answer is correct
The correct answer is option 4: 49
Key Points
The given number is in hexadecimal (base 16) format: 3116.
To convert it to decimal (base 10):
3116 = (3 × 161) + (1 × 160) = 48 + 1 = 4910
Explanation of options:
- Option 1 – 49: ✅ Correct. It is the decimal equivalent of hexadecimal 31.
- Option 2 – 42: ❌ Incorrect conversion.
- Option 3 – 48: ❌ Only part of the correct sum (3 × 16), but missing +1.
- Option 4 – 41: ❌ Incorrect calculation from hexadecimal.
Hence, the correct answer is: option 1: 49