Worksheet on Alphanumeric Series for Class 1

Solved Questions on Alphanumeric Series

1. What is the next letter in the series "A1, C3, E5, G7"?

a) H9
b) I9
c) G11
d) J11

Answer: b) I9

Explanation: Based on these patterns, we can determine the next letter and number in the series. The last letter given is "G", so the next letter would be "I" (following the alphabetical order). The last number given is 7, so the next number would be 9 (increasing by 2).

It means the answer is I9.

2. What is the next term in the series "9, G, 13, K, 18, O, 24, ___"?

a) C
b) L
c) S
d) G

Answer: c) S

Explanation: The series consisting of the numbers 9, 13, 18, and 24 demonstrates consecutive differences of 4, 5, and 6 respectively. Similarly, the alphabets G, K, and O exhibit a consistent difference of 4 in their respective positions within the alphabet (G = 7, K = 11, O = 15). Based on this pattern, the next number in the sequence would be 19, corresponding to the alphabet S.

Thus, the next term in the series is S.

3. What is the missing term in the series "AB3, CD8, EF15, GH24, ___"?

a) IJ35
b) IJ34
c) IJ32
d) IJ30

Answer: a) IJ35

Explanation: In this series, the pattern is that the letters alternate in alphabetical order and the numbers follow an increasing pattern. The numbers have the difference of 5, 7, and 9 respectively, so the term 24 will be added by 11 which will give 35. In the missing term, the letter pair is "IJ" and the position of the term is 5.

Therefore, the missing term is "IJ35".

4. What is the next term in the series "W1, X4, Y9, Z16, AA25, ___"?

a) AB36
b) AB30
c) AB42
d) AB49

Answer: a) AB36

Explanation: In this series, the pattern is that the letters follow the alphabetical order and the numbers follow a pattern of squared values. The letter "A" corresponds to 12, "B" corresponds to 22, and so on. The next letter is "A" and its corresponding number is 62 = 36. Therefore, the next term is "AB36".

5. What is the missing term in the series "F2, I5, L8, ___, R14"?

a) O11
b) O12
c) O15
d) O17

Answer: a) O11

Explanation: In this series, the pattern is that the letters follow the alphabetical order and the numbers follow an increasing pattern, incrementing by 3 each time. The missing term occurs after "L8," so the next letter is "O" and the next number is 11. Therefore, the missing term is "O11".

Practice Questions on Alphanumeric Series

1. What is the next term in the series "A2, D6, G12, J20, ___"?

a) M30
b) M28
c) M36
d) M40

Answer: a) M30

2. What is the missing term in the series "AB6, DE13, GH21, JK30, ___"?

a) PQ32
b) LM35
c) MN40
d) NO48

Answer: c) MN40

3. What is the next term in the series "1Z, 5Y, 9X, 13W, ___"?

a) 15V
b) 17V
c) 19U
d) 21U

Answer: b) 17V

4. What is the missing term in the series "15, B, 12, F, 9, ___, 6"?

a) G
b) I
c) H
d) J

Answer: d) J

5. What is the next term in the series "AC3, BE9, CG27, DI81, ___"?

a) GQ231
b) EK243
c) JK343
d) GQ448

Answer: b) EK243

6. What is the missing term in the series "C2, G4, K8, ___"?

a) O13
b) O14
c) O15
d) O16

Answer: d) O16

7. What is the next term in the series "B12, D22, F34, H48, ___"?

a) J64
b) J68
c) J70
d) J74

Answer: a) J64

8. What is the missing term in the series "1A, 3D, 5G, ___"?

a) 7K
b) 7J
c) 8L
d) 8M

Answer: b) 7J

9. What is the next term in the series "J14, M19, P26, ___"?

a) S33
b) S34
c) S35
d) S40

Answer: c) S35

10. What is the missing term in the series "8X, 11V, 14T, ___"?

a) 15P
b) 17R
c) 18S
d) 19T

Answer: b) 17R

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