If ROW is coded as 3 and LAND is coded as 4, FRIGHTENED will be coded as _________.

Let's analyze the relation between the word and its code number:ROW has 3 letters $\to$ Coded as 3.LAND has 4 letters $\to$ Coded as 4.The logic is simply the total number of letters present in the word.Counting the letters in FRIGHTENED:F-R-I-G-H-T-E-N-E-D = 10 letters.Therefore, the code is 10.