What is the binary equivalent of the hexadecimal number A5?

To convert the hexadecimal number A5 into its binary equivalent, we start by converting each individual hexadecimal digit to binary.

The hexadecimal system is based on 16, where A represents the decimal value 10 and 5 remains as 5 in decimal.

• The hexadecimal digit A corresponds to the binary equivalent of 1010. Each hexadecimal digit can be represented by a 4-bit binary number, and for A, the conversion is:

• A (10 in decimal) = 1010 in binary

• The hexadecimal digit 5 corresponds to the binary equivalent of 0101:

• 5 (5 in decimal) = 0101 in binary

Now, we can combine these two binary values to form the complete binary representation of the hexadecimal number A5:

• A5 in hexadecimal translates to 1010 (A) followed by 0101 (5), resulting in 10100101.

Thus, the binary equivalent of A5 is indeed 10100101, making it the correct choice.