In each question, a made-up rule turns the letters of one word into a code. Study the example word and its code to work out the rule, then apply the same rule to the second word. Choose the one option, A to E, that shows the correct code (or, in some questions, the correct word). Only one option can be right for each question.
Worked example. If the code for RIVER is SJWFS, what is the code for STONE? Answer: TUPOF. Each letter of RIVER has been moved 1 place forward in the alphabet to make the code SJWFS: R+1=S, I+1=J, V+1=W, E+1=F, R+1=S. Applying the same rule to STONE: S+1=T, T+1=U, O+1=P, N+1=O, E+1=F, giving the code TUPOF.
1
If the code for DOG is EPH, what is the code for BUS, using the same rule?
A) DWU
B) TVC
C) CVT
D) VCT
E) ATR
(Total for Question 1 is 1 mark)
2
If the code for CAT is DBU, what is the code for FOX, using the same rule?
A) GPY
B) HQZ
C) PGY
D) YPG
E) ENW
(Total for Question 2 is 1 mark)
3
If the code for HEN is IFO, what is the code for PIG, using the same rule?
A) OHF
B) RKI
C) JQH
D) HJQ
E) QJH
(Total for Question 3 is 1 mark)
4
If the code for BUS is CVT, and the same rule turns each word's letters 1 place forward in the alphabet, which word does the code IFO represent?
A) DEN
B) HEN
C) MEN
D) PEN
E) TEN
(Total for Question 4 is 1 mark)
5
If the code for PIG is QJH, what is the code for LAMP, using the same rule?
A) LAMP
B) NCOR
C) QNBM
D) MBNQ
E) MNBQ
(Total for Question 5 is 1 mark)
6
If the code for PLUM is RNWO, what is the code for FROG, using the same rule?
A) DPME
B) HQTI
C) HTQI
D) IQTH
E) IURJ
(Total for Question 6 is 1 mark)
7
If the code for SAND is UCPF, what is the code for LAMB, using the same rule?
A) NCOD
B) MBNC
C) NOCD
D) DOCN
E) ODPE
(Total for Question 7 is 1 mark)
8
If the code for STAR is VWDU, what is the code for MILK, using the same rule?
A) JFIH
B) QMPO
C) POLN
D) NOLP
E) PLON
(Total for Question 8 is 1 mark)
9
If the code for CORN is FRUQ, what is the code for DESK, using the same rule?
A) ABPH
B) GHVN
C) HIWO
D) GVHN
E) NVHG
(Total for Question 9 is 1 mark)
10
If the code for FISH is EHRG, what is the code for CHIP, using the same rule?
A) AFGN
B) BHGO
C) OHGB
D) BGHO
E) DIJQ
(Total for Question 10 is 1 mark)
11
If the code for BIRD is AHQC, what is the code for SHIP, using the same rule?
A) QFGN
B) RHGO
C) RGHO
D) OHGR
E) TIJQ
(Total for Question 11 is 1 mark)
12
If the code for WOLF is VNKE, and the same rule turns each word's letters 1 place back in the alphabet, which word does the code ANNJ represent?
A) BOOK
B) COOK
C) HOOK
D) LOOK
E) TOOK
(Total for Question 12 is 1 mark)
13
If the code for GOLD is EMJB, what is the code for TOWN, using the same rule?
A) VQYP
B) QLTK
C) RUML
D) LUMR
E) RMUL
(Total for Question 13 is 1 mark)
14
If the code for TOWN is RMUL, what is the code for NEST, using the same rule?
A) PGUV
B) LCQR
C) KBPQ
D) LQCR
E) RQCL
(Total for Question 14 is 1 mark)
15
If the code for FLUTE is CIRQB, what is the code for STORM, using the same rule?
A) VWRUP
B) OPKNI
C) PLQOJ
D) PQLOJ
E) JOLQP
(Total for Question 15 is 1 mark)
16
If the code for LION is NKQP, and the same rule turns each word's letters 2 places forward in the alphabet, which word does the code FWEM represent?
A) BUCK
B) LUCK
C) DUCK
D) PUCK
E) TUCK
(Total for Question 16 is 1 mark)
17
In this code, A=Z, B=Y, C=X and so on through the alphabet in reverse. If the code for CAT is XZG, what is the code for DOG, using the same rule?
A) WLT
B) TLW
C) LWT
D) VKS
E) WLG
(Total for Question 17 is 1 mark)
18
In this code, A=Z, B=Y, C=X and so on through the alphabet in reverse. If the code for HOUSE is SLFHV, what is the code for LEMON, using the same rule?
A) MLNVO
B) ONVLM
C) NUMKL
D) OVNLN
E) OVNLM
(Total for Question 18 is 1 mark)
19
In this code, A=Z, B=Y, C=X and so on through the alphabet in reverse. If the code for STONE is HGLMV, what is the code for GARDEN, using the same rule?
A) MVWIZT
B) TZIWVM
C) TZWIVM
D) SYHVUL
E) TZIWVN
(Total for Question 19 is 1 mark)
20
In this code, A=Z, B=Y, C=X and so on through the alphabet in reverse. If the code for CLOUD is XOLFW, what is the code for BREAD, using the same rule?
A) WZVIY
B) YVIZW
C) XHUYV
D) YIVZW
E) YIVZD
(Total for Question 20 is 1 mark)
21
In this code, A=Z, B=Y, C=X and so on through the alphabet in reverse. If the code for TABLE is GZYOV, which word does the code NLFHV represent, using the same rule?
A) HOUSE
B) LOUSE
C) MOUSE
D) MOOSE
E) ROUSE
(Total for Question 21 is 1 mark)
22
In this code, the 1st, 3rd and 5th letters of the word move 1 place forward in the alphabet, and the 2nd and 4th letters move 1 place back. If the code for APPLE is BOQKF, what is the code for TIGER, using the same rule?
A) UHHDS
B) SJFFQ
C) UJHFS
D) SDHHU
E) HUHDS
(Total for Question 22 is 1 mark)
23
In this code, letters in odd positions (1st, 3rd, 5th) move 1 place forward in the alphabet, and letters in even positions (2nd, 4th) move 2 places forward. If the code for GRAPE is HTBRF, what is the code for CHESS, using the same rule?
A) EIGTU
B) DIFTT
C) TUFJD
D) DFJUT
E) DJFUT
(Total for Question 23 is 1 mark)
24
In this code, the 1st letter moves 1 place forward in the alphabet, the 2nd letter moves 2 places forward, the 3rd letter moves 3 places forward, and so on. If the code for FISH is GKVL, what is the code for BIRD, using the same rule?
A) FLTE
B) CKUH
C) CJSE
D) HUKC
E) CUKH
(Total for Question 24 is 1 mark)
25
In this code, the 1st letter moves 1 place forward in the alphabet, the 2nd letter moves 2 places forward, the 3rd letter moves 3 places forward, the 4th letter moves 4 places forward, and the 5th letter moves 5 places forward. If the code for APPLE is BRSPJ, what is the code for CRANE, using the same rule?
A) HVDPF
B) DSBOF
C) JRDTD
D) DTDRJ
E) DDTRJ
(Total for Question 25 is 1 mark)
Mark scheme · EP.V9 Letter Codes
Question 1
B1 C) CVT - each letter of the word is moved 1 place forward in the alphabet, matching DOG->EPH (D+1=E, O+1=P, G+1=H): B+1=C, U+1=V, S+1=T
Answer: C) CVT
Question 2
B1 A) GPY - each letter is moved 1 place forward in the alphabet, matching CAT->DBU (C+1=D, A+1=B, T+1=U): F+1=G, O+1=P, X+1=Y
Answer: A) GPY
Question 3
B1 E) QJH - each letter is moved 1 place forward in the alphabet, matching HEN->IFO (H+1=I, E+1=F, N+1=O): P+1=Q, I+1=J, G+1=H
Answer: E) QJH
Question 4
B1 B) HEN - decoding IFO by moving each letter 1 place back (I-1=H, F-1=E, O-1=N) gives HEN, matching the rule shown in BUS->CVT (B+1=C, U+1=V, S+1=T)
Answer: B) HEN
Question 5
B1 D) MBNQ - each letter is moved 1 place forward in the alphabet, matching PIG->QJH (P+1=Q, I+1=J, G+1=H): L+1=M, A+1=B, M+1=N, P+1=Q
Answer: D) MBNQ
Question 6
B1 C) HTQI - each letter is moved 2 places forward in the alphabet, matching PLUM->RNWO (P+2=R, L+2=N, U+2=W, M+2=O): F+2=H, R+2=T, O+2=Q, G+2=I
Answer: C) HTQI
Question 7
B1 A) NCOD - each letter is moved 2 places forward in the alphabet, matching SAND->UCPF (S+2=U, A+2=C, N+2=P, D+2=F): L+2=N, A+2=C, M+2=O, B+2=D
Answer: A) NCOD
Question 8
B1 E) PLON - each letter is moved 3 places forward in the alphabet, matching STAR->VWDU (S+3=V, T+3=W, A+3=D, R+3=U): M+3=P, I+3=L, L+3=O, K+3=N
Answer: E) PLON
Question 9
B1 B) GHVN - each letter is moved 3 places forward in the alphabet, matching CORN->FRUQ (C+3=F, O+3=R, R+3=U, N+3=Q): D+3=G, E+3=H, S+3=V, K+3=N
Answer: B) GHVN
Question 10
B1 D) BGHO - each letter is moved 1 place back in the alphabet, matching FISH->EHRG (F-1=E, I-1=H, S-1=R, H-1=G): C-1=B, H-1=G, I-1=H, P-1=O
Answer: D) BGHO
Question 11
B1 C) RGHO - each letter is moved 1 place back in the alphabet, matching BIRD->AHQC (B-1=A, I-1=H, R-1=Q, D-1=C): S-1=R, H-1=G, I-1=H, P-1=O
Answer: C) RGHO
Question 12
B1 A) BOOK - decoding ANNJ by moving each letter 1 place forward (A+1=B, N+1=O, N+1=O, J+1=K) gives BOOK, matching the rule shown in WOLF->VNKE (W-1=V, O-1=N, L-1=K, F-1=E)
Answer: A) BOOK
Question 13
B1 E) RMUL - each letter is moved 2 places back in the alphabet, matching GOLD->EMJB (G-2=E, O-2=M, L-2=J, D-2=B): T-2=R, O-2=M, W-2=U, N-2=L
Answer: E) RMUL
Question 14
B1 B) LCQR - each letter is moved 2 places back in the alphabet, matching TOWN->RMUL (T-2=R, O-2=M, W-2=U, N-2=L): N-2=L, E-2=C, S-2=Q, T-2=R
Answer: B) LCQR
Question 15
B1 D) PQLOJ - each letter is moved 3 places back in the alphabet, matching FLUTE->CIRQB (F-3=C, L-3=I, U-3=R, T-3=Q, E-3=B): S-3=P, T-3=Q, O-3=L, R-3=O, M-3=J
Answer: D) PQLOJ
Question 16
B1 C) DUCK - decoding FWEM by moving each letter 2 places back (F-2=D, W-2=U, E-2=C, M-2=K) gives DUCK, matching the rule shown in LION->NKQP (L+2=N, I+2=K, O+2=Q, N+2=P)
Answer: C) DUCK
Question 17
B1 A) WLT - each letter is replaced by its mirror-image partner in the alphabet (A/Z, B/Y, C/X pairs), matching CAT->XZG (C->X, A->Z, T->G): D->W, O->L, G->T
Answer: A) WLT
Question 18
B1 E) OVNLM - each letter is replaced by its mirror-image partner, matching HOUSE->SLFHV (H->S, O->L, U->F, S->H, E->V): L->O, E->V, M->N, O->L, N->M
Answer: E) OVNLM
Question 19
B1 B) TZIWVM - each letter is replaced by its mirror-image partner, matching STONE->HGLMV (S->H, T->G, O->L, N->M, E->V): G->T, A->Z, R->I, D->W, E->V, N->M
Answer: B) TZIWVM
Question 20
B1 D) YIVZW - each letter is replaced by its mirror-image partner, matching CLOUD->XOLFW (C->X, L->O, O->L, U->F, D->W): B->Y, R->I, E->V, A->Z, D->W
Answer: D) YIVZW
Question 21
B1 C) MOUSE - decoding NLFHV by finding each letter's mirror partner (N->M, L->O, F->U, H->S, V->E) gives MOUSE, matching the rule shown in TABLE->GZYOV (T->G, A->Z, B->Y, L->O, E->V)
Answer: C) MOUSE
Question 22
B1 A) UHHDS - T(1st,+1)=U, I(2nd,-1)=H, G(3rd,+1)=H, E(4th,-1)=D, R(5th,+1)=S, matching the rule shown in APPLE->BOQKF (A+1=B, P-1=O, P+1=Q, L-1=K, E+1=F)
Answer: A) UHHDS
Question 23
B1 E) DJFUT - C(1st,+1)=D, H(2nd,+2)=J, E(3rd,+1)=F, S(4th,+2)=U, S(5th,+1)=T, matching the rule shown in GRAPE->HTBRF (G+1=H, R+2=T, A+1=B, P+2=R, E+1=F)
Answer: E) DJFUT
Question 24
B1 B) CKUH - B(1st,+1)=C, I(2nd,+2)=K, R(3rd,+3)=U, D(4th,+4)=H, matching the rule shown in FISH->GKVL (F+1=G, I+2=K, S+3=V, H+4=L)
Answer: B) CKUH
Question 25
B1 D) DTDRJ - C(1st,+1)=D, R(2nd,+2)=T, A(3rd,+3)=D, N(4th,+4)=R, E(5th,+5)=J, matching the rule shown in APPLE->BRSPJ (A+1=B, P+2=R, P+3=S, L+4=P, E+5=J)