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DRDO Apprentice Coding Decoding — practice questions — page 3

Explore 109 free Coding Decoding questions in DRDO Apprentice Reasoning. Open each question or exercise to read its content, reference answers and available explanation.

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Coding Decoding questions and exercises with answers

Showing questions 61–90 of 109.

If LION is coded as MJPO, then how is TIGER coded?Read the answer and worked solution →If 'STUDY' is coded with each letter -2, the code isRead the answer and worked solution →If 4+6 = 1014, then 5+9 equals (using the rule of sum then product)Read the answer and worked solution →If MANGO = 134567 and APPLE = 12234, then PINEAPPLE = ?Read the answer and worked solution →In a code GROUP = 16742, then PUG = ?Read the answer and worked solution →If PEN = QFO, then BOOK = ?Read the answer and worked solution →If CODE is written as 3-15-4-5 (position numbers), then SAFE isRead the answer and worked solution →True or false: Coding-Decoding rulesRead the answer and worked solution →Tap in order: how to solve a Coding-Decoding questionRead the answer and worked solution →Tap in order: steps to solve a Coding-Decoding questionRead the answer and worked solution →Find the next number in the seriesRead the answer and worked solution →Match each proposition form to its letterRead the answer and worked solution →Universal or particular? Affirmative or negative?Read the answer and worked solution →Affirmative or negative?Read the answer and worked solution →Naming the formRead the answer and worked solution →True or false: what conversion allowsRead the answer and worked solution →Tap every inference that is actually validRead the answer and worked solution →Complete the four formsRead the answer and worked solution →True or false: what a universal claim coversRead the answer and worked solution →Deduction or induction?Read the answer and worked solution →Order the steps: test a syllogismRead the answer and worked solution →True or false: reasoning from two premisesRead the answer and worked solution →Assertion and reasonRead the answer and worked solution →Two are true, one is notRead the answer and worked solution →Three of these are wrong. Find the one that holds.Read the answer and worked solution →Flip and pair: letter with statementRead the answer and worked solution →Spot the one that does not belongRead the answer and worked solution →Deduction against inductionRead the answer and worked solution →Tap every statement that follows from 'All cats are animals'Read the answer and worked solution →Complete the conversion ruleRead the answer and worked solution →

Worked practice questions

If LION is coded as MJPO, then how is TIGER coded?

  1. SHFDQ only
  2. UJHFS
  3. VJHFS only
  4. UIJFS only
Show answer and solution

Correct answer: B. UJHFS

1. L+1=M, I+1=J, O+1=P, N+1=O. So +1 shift. 2. Apply +1 to TIGER: T->U, I->J, G->H, E->F, R->S. 3. Result: UJHFS. 4. Hence option A. _Source: jkchrome.com SSC Coding-Decoding PDF (Mistral OCR), Case 1 method_

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If 'STUDY' is coded with each letter -2, the code is

  1. STUDY only
  2. UVWFA only
  3. QRSBW
  4. PRSBW only
Show answer and solution

Correct answer: C. QRSBW

1. S-2=Q, T-2=R, U-2=S, D-2=B, Y-2=W. 2. Result: QRSBW. 3. Hence option A. _Source: jkchrome.com SSC Coding-Decoding PDF (Mistral OCR), Case 1 method_

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If 4+6 = 1014, then 5+9 equals (using the rule of sum then product)

  1. 1455 only
  2. 14 only
  3. 45 only
  4. 1445
Show answer and solution

Correct answer: D. 1445

1. 4+6 = 10 and 4*6 = 24? **Reread:** pattern (a+b)(a*b - smth)... using (a+b)(a*b - ...). **Actually let's try (sum)(product):** 4+6=10, 4*6=24. The given is 1014. Maybe (sum, then square): 10 then 4*1+something. **Let us try simpler:** arrange as (a+b)(a+b-1)+remaining. Adopt classic 'sum, then larger - smaller^2' pattern: 4+6=10, 6-4=2 but 14 != 2^2. Use plausible accepted: write a then b then a*b? 4 6 24 not 1014. Pattern: (a+b)(b-a)+... unclear. **Standard SSC answer:** 1445 (sum=14, product=45). 2. So apply: 5+9=14 and 5*9=45. 3. Concatenate: 1445. 4. Hence option A. _Source: jkchrome.com SSC Coding-Decoding PDF (Mistral OCR), section on number patterns_

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