Coding-Decoding

1. A. 11880
2. B. 11240
3. C. 7920
4. D. 5940

Answer: A

Explanation

Let’s analyze the given coding pattern based on the alphabetical positions of the letters:
– A=1, B=2, C=3, D=4
For ‘ABCD’, the code is 24. This can be obtained by multiplying their alphabetical positions: 1 * 2 * 3 * 4 = 24.

– E=5, F=6, G=7, H=8
For ‘EFGH’, the code is 1680. This can be obtained by multiplying their alphabetical positions: 5 * 6 * 7 * 8 = 30 * 56 = 1680.

The pattern is consistent: the code is the product of the alphabetical positions of the letters in the word.

Now, apply this pattern to ‘IJKL’:
– I=9, J=10, K=11, L=12
The code for ‘IJKL’ will be the product of their alphabetical positions: 9 * 10 * 11 * 12.
9 * 10 = 90
11 * 12 = 132
90 * 132 = 11880.

Therefore, ‘IJKL’ is written as 11880. This question tests pattern recognition and coding-decoding skills.

1. A. AARENA
2. B. AANREA
3. C. AANEAR
4. D. AANERA

Answer: D

Explanation

Let’s analyze the given coding pattern:

1. **POT is written as ATOP**:
– Original letters: P, O, T
– Coded letters: A, T, O, P
– It appears an ‘A’ is added at the beginning. The remaining letters (T, O, P) are the original letters (P, O, T) arranged in reverse order.
So, the pattern is: Add ‘A’ at the beginning, then write the original word’s letters in reverse order.

2. **TRAP is written as APART**:
– Original letters: T, R, A, P
– Coded letters: A, P, A, R, T
– Following the deduced pattern: Add ‘A’ at the beginning. Then write the original letters (T, R, A, P) in reverse order: P, A, R, T.
– Combining these: A + P A R T = APART. This matches the given code.

The pattern is consistent: Add an ‘A’ at the beginning of the word, then append the letters of the original word in reverse order.

Now, apply this rule to **ARENA**:
1. Add ‘A’ at the beginning: A
2. Original letters of ARENA (A, R, E, N, A) in reverse order: A, N, E, R, A.
3. Combine these: A + A N E R A = AANERA.

Therefore, ‘ARENA’ is written as AANERA. This question tests pattern recognition and coding-decoding skills.

1. A. SOCACT
2. B. SODBGT
3. C. SODBHT
4. D. SODBHU

Answer: D

Explanation

To decode the pattern, let’s compare the letters of ‘ZERO’ and ‘CHUR’:
Z (26th letter) + 3 = C (3rd letter, wrapping around A, B, C)
E (5th letter) + 3 = H (8th letter)
R (18th letter) + 3 = U (21st letter)
O (15th letter) + 3 = R (18th letter)
The pattern is to shift each letter forward by 3 positions in the alphabet. Applying this rule to ‘PLAYER’:
P (16th) + 3 = S (19th)
L (12th) + 3 = O (15th)
A (1st) + 3 = D (4th)
Y (25th) + 3 = B (2nd, wrapping around Z, A, B)
E (5th) + 3 = H (8th)
R (18th) + 3 = U (21st)
Thus, ‘PLAYER’ is written as ‘SODBHU’.