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SSC · Coding-Decoding practice

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English SSC CGL Tier I papers. Free 60-minute mocks, 100 questions, 200 marks; +2 correct and −0.5 incorrect. Source: SSC response sheets preserved by SSC Portal. The marked archived keys have not been independently revalidated against final SSC keys; worked explanations are pending review. A/B/C/D correspond to source options 1/2/3/4.

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Question 1 · Reasoning Ability · Coding-Decoding
If MANGO is written as NBOHP, how is APPLE written?
Choose your answer for question 1
Answer and explanation

Correct answer: B

Each letter is replaced by the next letter of the alphabet: A→B, P→Q, P→Q, L→M, E→F.

Question 2 · Reasoning Ability · Coding-Decoding
If A = 1, B = 2, ... Z = 26, the sum of the letter values of the word DOG is
Choose your answer for question 2
Answer and explanation

Correct answer: C

D = 4, O = 15, G = 7, and 4 + 15 + 7 = 26.

Question 3 · Reasoning Ability · Coding-Decoding
If TABLE is written as 20 1 2 12 5, how is CHAIR written?
Choose your answer for question 3
Answer and explanation

Correct answer: A

Each letter is replaced by its position in the alphabet: C = 3, H = 8, A = 1, I = 9, R = 18.

Question 4 · Reasoning Ability · Coding-Decoding
If CLOCK is written as DMPDL, how is TIME written?
Choose your answer for question 4
Answer and explanation

Correct answer: A

Each letter is shifted one place forward: T→U, I→J, M→N, E→F.

Question 5 · Reasoning Ability · Coding-Decoding
If FRIEND is written as HUMJTK, how is CANDLE written?
Choose your answer for question 5
Answer and explanation

Correct answer: C

The shifts are +2, +3, +4, +5, +6, +7 for letters 1 to 6. So C→E, A→D, N→R, D→I, L→R, E→L.

Question 6 · Reasoning Ability · Coding-Decoding
If 2 is coded as 4, 3 as 9 and 4 as 16, then 6 is coded as
Choose your answer for question 6
Answer and explanation

Correct answer: B

Each number is coded as its square.

Question 7 · Reasoning Ability · Coding-Decoding
In a certain code, VNHW is written as XPJY. How is JVKT written in that code?
Choose your answer for question 7
Answer and explanation

Correct answer: C

Each letter is shifted 2 places forward. So JVKT becomes LXMV.

Question 8 · Reasoning Ability · Coding-Decoding
In a certain code, IDIDW is written as GBGBU. How is BMIIC written in that code?
Choose your answer for question 8
Answer and explanation

Correct answer: B

Each letter is shifted 2 places backward. So BMIIC becomes ZKGGA.

Question 9 · Reasoning Ability · Coding-Decoding
In a certain code, WVRF is written as YXTH. How is JNWQ written in that code?
Choose your answer for question 9
Answer and explanation

Correct answer: B

Each letter is shifted 2 places forward. So JNWQ becomes LPYS.

Question 10 · Reasoning Ability · Coding-Decoding
In a certain code, JMIQS is written as NQMUW. How is FABXR written in that code?
Choose your answer for question 10
Answer and explanation

Correct answer: B

Each letter is shifted 4 places forward. So FABXR becomes JEFBV.

Question 11 · Reasoning Ability · Coding-Decoding
In a certain code, SPMMW is written as XURRB. How is BEZEI written in that code?
Choose your answer for question 11
Answer and explanation

Correct answer: C

Each letter is shifted 5 places forward. So BEZEI becomes GJEJN.

Question 12 · Reasoning Ability · Coding-Decoding
In a certain code, MOFHL is written as KMDFJ. How is KUCJM written in that code?
Choose your answer for question 12
Answer and explanation

Correct answer: D

Each letter is shifted 2 places backward. So KUCJM becomes ISAHK.

Question 13 · Reasoning Ability · Coding-Decoding
In a certain code, CMXA is written as AKVY. How is XISM written in that code?
Choose your answer for question 13
Answer and explanation

Correct answer: B

Each letter is shifted 2 places backward. So XISM becomes VGQK.

Question 14 · Reasoning Ability · Coding-Decoding
In a certain code, UZHA is written as WBJC. How is ERNB written in that code?
Choose your answer for question 14
Answer and explanation

Correct answer: B

Each letter is shifted 2 places forward. So ERNB becomes GTPD.

Question 15 · Reasoning Ability · Coding-Decoding
In a certain code, TYJSS is written as OTENN. How is EUQDD written in that code?
Choose your answer for question 15
Answer and explanation

Correct answer: A

Each letter is shifted 5 places backward. So EUQDD becomes ZPLYY.

Question 16 · Reasoning Ability · Coding-Decoding
In a certain code, MQDI is written as RVIN. How is FWVY written in that code?
Choose your answer for question 16
Answer and explanation

Correct answer: B

Each letter is shifted 5 places forward. So FWVY becomes KBAD.

Question 17 · Reasoning Ability · Coding-Decoding
In a certain code, GCDQV is written as EABOT. How is LEDSQ written in that code?
Choose your answer for question 17
Answer and explanation

Correct answer: A

Each letter is shifted 2 places backward. So LEDSQ becomes JCBQO.

Question 18 · Reasoning Ability · Coding-Decoding
In a certain code, VMRUS is written as ZQVYW. How is EJKLL written in that code?
Choose your answer for question 18
Answer and explanation

Correct answer: A

Each letter is shifted 4 places forward. So EJKLL becomes INOPP.

Question 19 · Reasoning Ability · Coding-Decoding
In a certain code, LQSYZ is written as INPVW. How is KXGLD written in that code?
Choose your answer for question 19
Answer and explanation

Correct answer: D

Each letter is shifted 3 places backward. So KXGLD becomes HUDIA.

Question 20 · Reasoning Ability · Coding-Decoding
In a certain code, YAJO is written as XZIN. How is WFHJ written in that code?
Choose your answer for question 20
Answer and explanation

Correct answer: A

Each letter is shifted 1 place backward. So WFHJ becomes VEGI.

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