using these alphabets a,b,c,d e,f spell these letters a=1,b=2,c=3,d=4,e=5,f=e 2+5+4=11 bed 2+5+1+4=12 bead 6+5+5+4=20 feed what numbers and alphabet = 30
If you get to choose the alphabet and the numbers, there are any number of solutions.
If you must use the data shown, then the only word with score of 30 is "effaced".