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11+ · GL ASSESSMENT

EP.V20B Number Codes: Practice Set 2

GL ASSESSMENT GL VR type 20 · Calculators not allowed · about 20 minutes

Total Marks

Name: _______________________________ Date: ____ / ____ / ______

In this test, each question begins by showing how one or two words have been changed into number codes. Work out the rule that links the letters to the numbers, then use exactly the same rule to answer the question that follows. The rule may simply be each letter's position in the alphabet (A=1, B=2, up to Z=26), that position with a number added or taken away, the position doubled, or the position counted backwards from the end of the alphabet instead (Z=1, Y=2, and so on). Some questions give you a word and ask for its code; others give you a code and ask you to work out the word it stands for. Pick the one option, A to E, that matches. Look carefully at the worked example above before starting.

Worked example. If the code for PIG is 16-9-7, what is the code for OWL? Answer: 15-23-12. Each letter is replaced by its position in the alphabet, counting A=1, B=2, C=3, and so on up to Z=26. So P=16, I=9, G=7, giving PIG the code 16-9-7. Using the same rule, O=15, W=23, L=12, so OWL has the code 15-23-12.

If the code for PIG is 16-9-7, what is the code for OWL?

A) 15-22-12
B) 15-23-12
C) 15-24-12
D) 12-23-15
E) 15-23-13

(Total for Question 1 is 1 mark)

If the code for ELF is 5-12-6, what is the code for JAM?

A) 9-1-13
B) 10-1-13
C) 10-2-13
D) 13-1-10
E) 10-1-14

(Total for Question 2 is 1 mark)

If the code for NUT is 14-21-20, what is the code for WEB?

A) 22-5-2
B) 23-5-2
C) 23-6-2
D) 2-5-23
E) 23-5-3

(Total for Question 3 is 1 mark)

If the code for TIN is 20-9-14, what is the code for RUG?

A) 17-21-7
B) 18-21-7
C) 18-22-7
D) 7-21-18
E) 18-21-8

(Total for Question 4 is 1 mark)

If the code for ZEBRA is 26-5-2-18-1, what is the code for TIGER?

A) 19-9-7-5-18
B) 20-9-7-5-18
C) 20-10-7-5-18
D) 18-5-7-9-20
E) 20-9-7-4-18

(Total for Question 5 is 1 mark)

If the code for CRANE is 3-18-1-14-5, what is the code for STORK?

A) 18-20-15-18-11
B) 19-20-15-18-11
C) 19-20-16-18-11
D) 11-18-15-20-19
E) 19-20-15-18-12

(Total for Question 6 is 1 mark)

In this code, each letter's alphabet position has 4 added to it. Using this rule, the code for DESK is 8-9-23-15. What is the code for GOAT?

A) 7-15-1-20
B) 11-19-5-24
C) 11-20-5-24
D) 24-5-19-11
E) 11-19-9-24

(Total for Question 7 is 1 mark)

In this code, each letter's alphabet position has 3 taken away from it. Using this rule, the code for STORK is 16-17-12-15-8. What is the code for HORSE?

A) 8-15-18-19-5
B) 5-12-15-16-2
C) 5-13-15-16-2
D) 2-16-15-12-5
E) 2-12-15-16-2

(Total for Question 8 is 1 mark)

In this code, each letter's alphabet position has 2 added to it. Using this rule, the code for WOLF is 25-17-14-8. What is the code for SWAN?

A) 19-23-1-14
B) 21-25-3-16
C) 21-26-3-16
D) 16-3-25-21
E) 21-25-5-16

(Total for Question 9 is 1 mark)

In this code, each letter's alphabet position has 5 added to it. Using this rule, the code for CLAM is 8-17-6-18. What is the code for FROG?

A) 6-18-15-7
B) 11-23-20-12
C) 11-24-20-12
D) 12-20-23-11
E) 11-23-20-17

(Total for Question 10 is 1 mark)

In this code, each letter's alphabet position has 1 taken away from it. Using this rule, the code for GECKO is 6-4-2-10-14. What is the code for OTTER?

A) 15-20-20-5-18
B) 14-19-19-4-17
C) 14-18-19-4-17
D) 17-4-19-19-14
E) 14-19-19-4-16

(Total for Question 11 is 1 mark)

In this code, each letter's alphabet position has 3 added to it. Using this rule, the code for TROUT is 23-21-18-24-23. What is the code for QUAIL?

A) 17-21-1-9-12
B) 20-24-4-12-15
C) 20-25-4-12-15
D) 15-12-4-24-20
E) 20-24-4-12-18

(Total for Question 12 is 1 mark)

Using the code where each letter is replaced by its alphabet position (A=1, B=2, up to Z=26), for example DESK = 4-5-19-11, which word does the code 2-1-18-11 represent?

A) DARK
B) PARK
C) BARK
D) BARN
E) BARE

(Total for Question 13 is 1 mark)

Using the code where each letter is replaced by its alphabet position (A=1, B=2, up to Z=26), for example DESK = 4-5-19-11, which word does the code 6-9-14-5 represent?

A) FIRE
B) WINE
C) DINE
D) FINE
E) FIVE

(Total for Question 14 is 1 mark)

Using the code where each letter is replaced by its alphabet position (A=1, B=2, up to Z=26), for example DESK = 4-5-19-11, which word does the code 20-18-1-9-14 represent?

A) BRAIN
B) GRAIN
C) DRAIN
D) TRAIT
E) TRAIN

(Total for Question 15 is 1 mark)

Using the code where each letter is replaced by its alphabet position (A=1, B=2, up to Z=26), for example DESK = 4-5-19-11, which word does the code 8-15-21-19-5 represent?

A) MOUSE
B) HORSE
C) LOUSE
D) ROUSE
E) HOUSE

(Total for Question 16 is 1 mark)

Using the code where each letter is replaced by its alphabet position (A=1, B=2, up to Z=26), for example DESK = 4-5-19-11, which word does the code 19-16-15-15-14 represent?

A) SPOOK
B) SWOON
C) SPOOL
D) SPOOF
E) SPOON

(Total for Question 17 is 1 mark)

Using the code where each letter is replaced by its alphabet position (A=1, B=2, up to Z=26), for example DESK = 4-5-19-11, which word does the code 2-12-1-4-5 represent?

A) BLAZE
B) BLARE
C) GLADE
D) BLAME
E) BLADE

(Total for Question 18 is 1 mark)

If PEAR = 22-11-7-24 and LIME = 18-15-19-11, using the same rule for both words, what is the code for BEAN?

A) 2-5-1-14
B) 8-12-7-20
C) 8-11-7-20
D) 20-7-11-8
E) 8-11-7-26

(Total for Question 19 is 1 mark)

If TOWER = 16-11-19-1-14 and SHEEP = 15-4-1-1-12, using the same rule for both words, what is the code for FLOOR?

A) 6-12-15-15-18
B) 2-9-11-11-14
C) 2-8-11-11-14
D) 14-11-11-8-2
E) 2-8-11-11-10

(Total for Question 20 is 1 mark)

If CLAM = 6-24-2-26 and MEAL = 26-10-2-24, using the same rule for both words, what is the code for GAME?

A) 7-1-13-5
B) 14-2-26-10
C) 14-4-26-10
D) 10-26-2-14
E) 14-2-26-5

(Total for Question 21 is 1 mark)

If CANE = 10-8-21-12 and LIMB = 19-16-20-9, using the same rule for both words, what is the code for SEAL?

A) 19-5-1-12
B) 26-13-8-19
C) 26-12-8-19
D) 19-8-12-26
E) 26-12-8-26

(Total for Question 22 is 1 mark)

If SPORT = 14-11-10-13-15 and TRUNK = 15-13-16-9-6, using the same rule for both words, what is the code for SHIRT?

A) 19-8-9-18-20
B) 14-4-4-13-15
C) 14-3-4-13-15
D) 15-13-4-3-14
E) 14-3-4-13-10

(Total for Question 23 is 1 mark)

If OWL = 17-25-14 and JAM = 12-3-15, using the same rule for both words, which word does the code 4-7-3-13 represent?

A) BEAD
B) WEAK
C) BEAN
D) BEAT
E) BEAK

(Total for Question 24 is 1 mark)

If LEMON = 10-3-11-13-12 and TRUCK = 18-16-19-1-9, using the same rule for both words, which word does the code 17-6-7-12-3 represent?

A) SHONE
B) SPINE
C) SWINE
D) SHINY
E) SHINE

(Total for Question 25 is 1 mark)

If PIG = 11-18-20 and OWL = 12-4-15, using a code where each letter is instead counted from the end of the alphabet (Z=1, Y=2, and so on), which word does the code 14-6-15-22 represent?

A) MALE
B) MUSE
C) MILE
D) MUTE
E) MULE

(Total for Question 26 is 1 mark)

Mark scheme · EP.V20B Number Codes: Practice Set 2

Question 1

B1 B) 15-23-12 - each letter replaced by its alphabet position (O=15, W=23, L=12) cao
Answer: B) 15-23-12

Question 2

B1 B) 10-1-13 - each letter replaced by its alphabet position (J=10, A=1, M=13) cao
Answer: B) 10-1-13

Question 3

B1 B) 23-5-2 - each letter replaced by its alphabet position (W=23, E=5, B=2) cao
Answer: B) 23-5-2

Question 4

B1 B) 18-21-7 - each letter replaced by its alphabet position (R=18, U=21, G=7) cao
Answer: B) 18-21-7

Question 5

B1 B) 20-9-7-5-18 - each letter replaced by its alphabet position (T=20, I=9, G=7, E=5, R=18) cao
Answer: B) 20-9-7-5-18

Question 6

B1 B) 19-20-15-18-11 - each letter replaced by its alphabet position (S=19, T=20, O=15, R=18, K=11) cao
Answer: B) 19-20-15-18-11

Question 7

B1 B) 11-19-5-24 - alphabet position plus 4 for each letter (G=7+4=11, O=15+4=19, A=1+4=5, T=20+4=24) cao
Answer: B) 11-19-5-24

Question 8

B1 B) 5-12-15-16-2 - alphabet position minus 3 for each letter (H=8-3=5, O=15-3=12, R=18-3=15, S=19-3=16, E=5-3=2) cao
Answer: B) 5-12-15-16-2

Question 9

B1 B) 21-25-3-16 - alphabet position plus 2 for each letter (S=19+2=21, W=23+2=25, A=1+2=3, N=14+2=16) cao
Answer: B) 21-25-3-16

Question 10

B1 B) 11-23-20-12 - alphabet position plus 5 for each letter (F=6+5=11, R=18+5=23, O=15+5=20, G=7+5=12) cao
Answer: B) 11-23-20-12

Question 11

B1 B) 14-19-19-4-17 - alphabet position minus 1 for each letter (O=15-1=14, T=20-1=19, T=20-1=19, E=5-1=4, R=18-1=17) cao
Answer: B) 14-19-19-4-17

Question 12

B1 B) 20-24-4-12-15 - alphabet position plus 3 for each letter (Q=17+3=20, U=21+3=24, A=1+3=4, I=9+3=12, L=12+3=15) cao
Answer: B) 20-24-4-12-15

Question 13

B1 C) BARK - decodes as B=2, A=1, R=18, K=11 cao
Answer: C) BARK

Question 14

B1 D) FINE - decodes as F=6, I=9, N=14, E=5 cao
Answer: D) FINE

Question 15

B1 E) TRAIN - decodes as T=20, R=18, A=1, I=9, N=14 cao
Answer: E) TRAIN

Question 16

B1 E) HOUSE - decodes as H=8, O=15, U=21, S=19, E=5 cao
Answer: E) HOUSE

Question 17

B1 E) SPOON - decodes as S=19, P=16, O=15, O=15, N=14 cao
Answer: E) SPOON

Question 18

B1 E) BLADE - decodes as B=2, L=12, A=1, D=4, E=5 cao
Answer: E) BLADE

Question 19

B1 C) 8-11-7-20 - the rule is alphabet position plus 6 (B=2+6=8, E=5+6=11, A=1+6=7, N=14+6=20) cao
Answer: C) 8-11-7-20

Question 20

B1 C) 2-8-11-11-14 - the rule is alphabet position minus 4 (F=6-4=2, L=12-4=8, O=15-4=11, O=15-4=11, R=18-4=14) cao
Answer: C) 2-8-11-11-14

Question 21

B1 B) 14-2-26-10 - the rule is alphabet position doubled (G=7x2=14, A=1x2=2, M=13x2=26, E=5x2=10) cao
Answer: B) 14-2-26-10

Question 22

B1 C) 26-12-8-19 - the rule is alphabet position plus 7 (S=19+7=26, E=5+7=12, A=1+7=8, L=12+7=19) cao
Answer: C) 26-12-8-19

Question 23

B1 C) 14-3-4-13-15 - the rule is alphabet position minus 5 (S=19-5=14, H=8-5=3, I=9-5=4, R=18-5=13, T=20-5=15) cao
Answer: C) 14-3-4-13-15

Question 24

B1 E) BEAK - the rule is alphabet position plus 2, so decode by subtracting 2 first (4-2=2=B, 7-2=5=E, 3-2=1=A, 13-2=11=K) cao
Answer: E) BEAK

Question 25

B1 E) SHINE - the rule is alphabet position minus 2, so decode by adding 2 first (17+2=19=S, 6+2=8=H, 7+2=9=I, 12+2=14=N, 3+2=5=E) cao
Answer: E) SHINE

Question 26

B1 E) MULE - counting from the end of the alphabet, each digit d gives the letter in position (27-d): 27-14=13=M, 27-6=21=U, 27-15=12=L, 27-22=5=E cao
Answer: E) MULE

Number Codes: Practice Set 2 - Worksheets, Questions and Revision