Exercise: Letter Coding

Questions for: Letter Shifting (Forward/Backward)

If 'PLANT' is coded as 'SIDKW', then how would 'CRAFT' be coded using the same logic?

A: FUBCW
B: FSDBW
C: FOECW
D: FODCW
Answer: D

✅ The coding rule for 'PLANT' to 'SIDKW' involves an alternating shift pattern: the first letter shifts +3, the second -3, the third +3, and so on. Applying this to 'CRAFT' yields C(+3)=F, R(-3)=O, A(+3)=D, F(-3)=C, T(+3)=W, resulting in 'FODCW'.

❌ Option A is incorrect because the shifts for 'R' and 'A' do not follow the established alternating +3/-3 pattern (R->U is +3, A->B is +1).

❌ Option B is incorrect as it applies inconsistent shifts, such as R->S (+1) and F->B (-4).

❌ Option C is incorrect because the shift for 'A' (A->E) is +4 instead of the required +3 according to the pattern.

If 'CLUE' is coded as 'DJXA' following a specific letter shifting pattern, how would 'BLIND' be coded using the same pattern?

A: CJLJE
B: CKLIF
C: DLKJE
D: CMLGE
Answer: A

✅ To decode the pattern, let's compare 'CLUE' with 'DJXA':

C (3rd letter) + 1 = D (4th letter)

L (12th letter) - 2 = J (10th letter)

U (21st letter) + 3 = X (24th letter)

E (5th letter) - 4 = A (1st letter)

The established pattern is a sequential shift: +1, -2, +3, -4. Applying this pattern to 'BLIND', and cycling the pattern for the fifth letter as +1:

B (+1) → C; L (-2) → J; I (+3) → L; N (-4) → J; D (+1) → E.

Thus, 'BLIND' is coded as 'CJLJE'.

If "BRIGHT" is coded as "CQJFIS", how would "CRICKET" be coded using the same rule?

A: DQJBLDU
B: DQJBLED
C: CSJBKFS
D: ESJBKFU
Answer: A

✅ The pattern applied to "BRIGHT" to get "CQJFIS" involves an alternating shift: the first letter shifts forward by 1 (+1), the second shifts backward by 1 (-1), and this (+1, -1) sequence repeats.

For example, B(+1)=C, R(-1)=Q, I(+1)=J, G(-1)=F, H(+1)=I, T(-1)=S.

Applying this rule to "CRICKET": C(+1)=D, R(-1)=Q, I(+1)=J, C(-1)=B, K(+1)=L, E(-1)=D, T(+1)=U.

Thus, "CRICKET" is coded as "DQJBLDU".

❌ Options B, C, and D contain incorrect shifts at various positions, failing to adhere to the consistent alternating (+1, -1) pattern.

If 'TRAIN' is coded as 'UTDMS' using a specific letter shifting rule, how would 'PLANT' be coded using the same rule?

A: QNDRY
B: RNCPV
C: QMBOU
D: OJXJO
Answer: A

✅ The pattern observed from 'TRAIN' to 'UTDMS' is that each letter is shifted forward by a number corresponding to its position in the word.

For 'TRAIN': T (1st letter) shifts +1 to U; R (2nd letter) shifts +2 to T; A (3rd letter) shifts +3 to D; I (4th letter) shifts +4 to M; N (5th letter) shifts +5 to S.

Applying this rule to 'PLANT':

  • P (16) + 1 = Q (17)
  • L (12) + 2 = N (14)
  • A (1) + 3 = D (4)
  • N (14) + 4 = R (18)
  • T (20) + 5 = Y (25)

Therefore, 'PLANT' is coded as 'QNDRY'.

❌ Option B (RNCPV) is incorrect as it would imply a constant +2 shift for all letters, which does not match the example.

❌ Option C (QMBOU) is incorrect; this would result from a constant +1 shift, which is not the pattern established.

❌ Option D (OJXJO) is incorrect; this would involve a decreasing backward shift (-1, -2, -3...), which is opposite to the forward, increasing shift found in the example.

If in a certain code language, MARKET is coded as NYUGJN, how will SPREAD be coded in the same language?

A: TNUAFX
B: TNUEFY
C: TRUIFJ
D: QNVXAE
Answer: A

✅ The pattern for MARKET (M-A-R-K-E-T) coded as NYUGJN (N-Y-U-G-J-N) is observed as follows:

M (+1) = N, A (-2) = Y, R (+3) = U, K (-4) = G, E (+5) = J, T (-6) = N.

This means the shift value increases by 1 for each subsequent letter (1, 2, 3, 4, 5, 6), and the direction alternates between forward (+) and backward (-).

Applying this pattern to SPREAD:

S (+1) = T

P (-2) = N

R (+3) = U

E (-4) = A

A (+5) = F

D (-6) = X

Therefore, SPREAD is coded as TNUAFX.

❌ Options B, C, and D do not follow the established alternating shift pattern with increasing values.

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