Elon Musk Can you solve it? If you can, I'll hire you. IQ test - 30 20 13

The sequence "30, 20, 13" appears to follow a pattern where the numbers decrease in a particular way:

• From 30 to 20, the difference is 10.
• From 20 to 13, the difference is 7.

If we observe the pattern, the differences between consecutive terms are decreasing (10, then 7).

If we continue this pattern, the next difference could decrease by another 3 (7 - 3 = 4). So we would subtract 4 from 13:

13 - 4 = 9.

Therefore, if the pattern continues, the next number in the sequence would be 9.