If 'A' = 1, 'AA' = 11, 'AAA' = 111, what is 'AAAA'? MCQ with Answer and Explanation

If 'A' = 1, 'AA' = 11, 'AAA' = 111, what is 'AAAA'?
A. 4
B. 111
C. 11111
D. 1111
Answer: Option D
Solution (By JKExamLibrary)
Pattern: number of A's concatenated. 4 A's -> 1111.

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Practice More Coding-Decoding Questions

Question #1
In a certain code, 'il be pe' means 'roses are blue', 'pe mit hee' means 'flowers are vegetables', and 'il nay' means 'blue skies'. What is the code for 'roses'?
A. be
B. pe
C. nay
D. il

Correct Answer: Option A


Explanation:
'are' is common in 1st and 2nd, code 'pe'. 'blue' is common in 1st and 3rd, code 'il'. Therefore, in 'il be pe', 'roses' is coded as 'be'.

This question belongs to: Reasoning Coding-Decoding
Question #2
In a code language, 'MARCH' is written as 'LZQBG'. How is 'APRIL' written in that language?
A. ZOQHK
B. YOPGK
C. ZPQHL
D. YNPQJ

Correct Answer: Option A


Explanation:
Each letter is shifted -1 step backward in the alphabet. A(-1)=Z, P(-1)=O, R(-1)=Q, I(-1)=H, L(-1)=K. APRIL is ZOQHK.

This question belongs to: Reasoning Coding-Decoding
Question #3
If 'A' = 10, 'B' = 20, 'C' = 30, what is 'D'?
A. 40
B. 30
C. 50
D. 60

Correct Answer: Option A


Explanation:
Code = pos * 10. D(4)*10 = 40.

This question belongs to: Reasoning Coding-Decoding