Multiple choice

How many NAND gates are needed to perform the logic function X.Y?

  1. 1

  2. 2

  3. 3

  4. 4

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

To perform an AND operation using NAND gates, you need two: the first NAND gate performs the AND operation (with inputs X and Y), and the second NAND gate acts as an inverter to restore the AND logic.