If 'A' is a number in base-5 and is represented as '43', what is its decimal equ

Practice Questions

Q1
If 'A' is a number in base-5 and is represented as '43', what is its decimal equivalent?
  1. 20
  2. 23
  3. 25
  4. 30

Questions & Step-by-Step Solutions

If 'A' is a number in base-5 and is represented as '43', what is its decimal equivalent?
  • Step 1: Understand that '43' is a number in base-5.
  • Step 2: Identify the digits in '43'. The first digit is '4' and the second digit is '3'.
  • Step 3: Determine the place values for each digit. The leftmost digit (4) is in the '5^1' place, and the rightmost digit (3) is in the '5^0' place.
  • Step 4: Calculate the value of the first digit: 4 * 5^1 = 4 * 5 = 20.
  • Step 5: Calculate the value of the second digit: 3 * 5^0 = 3 * 1 = 3.
  • Step 6: Add the values from Step 4 and Step 5 together: 20 + 3 = 23.
  • Step 7: Conclude that the decimal equivalent of '43' in base-5 is 23.
  • Base Conversion – Understanding how to convert numbers from one base to another, specifically from base-5 to decimal.
  • Positional Value – Recognizing the significance of each digit's position in a number system, where each position represents a power of the base.
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