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Metro Rail (DMRC) Number Series, Coding and Decoding and Odd Man Out — practice questions — page 3

Explore 106 free Number Series, Coding and Decoding and Odd Man Out questions in Metro Rail (DMRC) Reasoning. Open each question or exercise to read its content, reference answers and available explanation.

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Number Series, Coding and Decoding and Odd Man Out questions and exercises with answers

Showing questions 61–90 of 106.

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 →Higher or lower? Pick the bigger next termRead the answer and worked solution →Spot the WRONG term 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 →Which reversal is safe?Read the answer and worked solution →Complete the definition of a sequenceRead the answer and worked solution →Sequence or series?Read the answer and worked solution →

Worked practice questions

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

  1. STUDY only
  2. UVWFA only
  3. QRSBW
  4. PRSBW only
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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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If MANGO = 134567 and APPLE = 12234, then PINEAPPLE = ?

  1. 713412234
  2. 713512234 only
  3. 12345678 only
  4. 31415926 only
Show answer and solution

Correct answer: A. 713412234

1. Use shared letters to align codes. 2. From MANGO and APPLE, A=1, P=2, etc. 3. Substitute into PINEAPPLE letter by letter using consistent code. 4. Final form is 713412234. _Source: jkchrome.com SSC Coding-Decoding PDF (Mistral OCR), Substitution-based decoding_

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More Reasoning topics

Coding DecodingDistance and DirectionNumber SeriesBlood RelationsAnalogyAnalogiesVenn DiagramsDirection Sense