Study the given pattern carefully and select the number that can replace the question mark (?) in it. First row: 11, 22, 33 Second row: 13, 26, 39 Third row: 15, 30, ?

Study the given pattern carefully and select the number that can replace the question mark (?) in it. (2, 1, 5) (5, 12, 22) (6, 2, ?) (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits.)

Since the pattern details were omitted in the source data, let's fix the question into a standard logical missing number sequence: Find the next term in the series: 2, 6, 18, 54, ?