Explanation
Step 1: Determine the pattern Given 3 = 6, 6 = 30, and 5 = 20, let's find the pattern. For 3 = 6, it could be 3 * 2 = 6. For 6 = 30, it could be 6 * 5 = 30. For 5 = 20, it could be 5 * 4 = 20. Step 2: Identify the pattern The pattern seems to be n * (n-1) or another pattern based on the given numbers. Step 3: Test the pattern n * (n-1) or n * x If we apply n * (n-1): 3 * (3-1) = 3 * 2 = 6 6 * (6-1) = 6 * 5 = 30 5 * (5-1) = 5 * 4 = 20 This pattern fits. Step 4: Apply the pattern to 7 7 * (7-1) = 7 * 6 = 42