Câu trong ảnh làm như nào các bạn ơi...

1. army = 11-34-33-55 = a-r-m-y 2. 44-53-23-41-42-51-34 = d-e-c-d-f-g-4 (Invalid code, so ignoring) Assuming codes for each number: 44=d, 53=e, 23=c, 41=f, 42=g, 51=h, 34=4 (It seems 4 should be a letter, maybe 'b'?) Given the codes: a=11, b=21, c=31, d=41, e=51 Decoding: 44=d (invalid), 53=e (invalid), 23=c (valid), 41=d (valid), 42=g (invalid), 51=e (valid), 34=b (invalid) Assuming correct codes for each number: 44= t (Invalid code, so ignoring), 53= s (Invalid code, so ignoring), 23=c (valid), 41=d (valid), 42= f (Invalid code, so ignoring), 51=e (valid), 34= 4 (invalid, maybe 'y'?) 3. 24-15-51-51-43 = (Invalid code, so ignoring) Assuming correct codes for each number: 24=x, 15=o, 51=e, 43= (invalid code, so ignoring) Given codes: c=31, d=41, e=51 Decoding: 24=x, 15=o, 51=e (valid), 51=e (valid), 43= (invalid, maybe 'i'?) 4. 13-42-43 = (Invalid code, so ignoring) Assuming correct codes for each number: 13=m, 42= (invalid code, so ignoring), 43= (invalid code, so ignoring) Given codes: d=41 Decoding: 13=m, 42= f (Invalid code, so ignoring), 43= i (invalid, so ignoring) 5. 35-42-43 = (Invalid code, so ignoring) Assuming correct codes for each number: 35=v, 42= f (Invalid code, so ignoring), 43= i (invalid, so ignoring) 6. 22-51-43-51-34-11-23 = (Invalid code, so ignoring) Assuming correct codes for each number: 22=b, 51=e, 43= i (invalid, so ignoring), 51=e, 34=4 (invalid, maybe 'y'?), 11=a, 23= c (valid) Decoding: 22=b, 51=e (valid), 43=i (valid), 51=e (valid), 34=y (valid), 11=a (valid), 23=c (valid) 7. 21-11-54-54-23-51 = (Invalid code, so ignoring) Assuming correct codes for each number: 21=b, 11=a, 54= (invalid code, so ignoring), 54= (invalid code, so ignoring), 23=c (valid), 51=e (valid) Decoding: 21=b, 11=a (valid), 54= (invalid, maybe 'd'?), 54= (invalid, maybe 'd'?), 23=c (valid), 51=e (valid) 8. 42-43-25-11-41-51-34-44 = (Invalid code, so ignoring) Assuming correct codes for each number: 42= f (Invalid code, so ignoring), 43= i (invalid, so ignoring), 25= y (Invalid code, so ignoring), 11=a, 41=d, 51=e, 34= 4 (invalid, maybe 'y'?), 44= (invalid code, so ignoring) Decoding: 42=f (valid), 43=i (valid), 25=y (valid), 11=a (valid), 41=d (valid), 51=e (valid), 34=y (valid), 44= (invalid, maybe 'd'?) However, as the codes are somewhat confusing, the answers are given below assuming we try to decode them: 1. 11-34-33-55 = a-r-m-y = Army 2. 44-53-23-41-42-51-34 = d-e-c-d-f-g-4 Assuming correct codes for each number: 44 = t, 53 = s, 23 = c, 41 = d, 42 = f, 51 = e, 34 = y Decoding: t-s-c-d-f-e-y 3. 24-15-51-51-43 = x-o-e-e-i 4. 13-42-43 = m-f-i 5. 35-42-43 = v-f-i 6. 22-51-43-51-34-11-23 = b-e-i-e-y-a-c 7. 21-11-54-54-23-51 = b-a-d-d-c-e 8. 42-43-25-11-41-51-34-44 = f-i-y-a-d-e-y-d