What Machine Input-Output Questions Test
- Alphabetical and numerical rearrangement rules
- One-element vs two-element shifts per step
- Counting steps to the final arrangement
- Arithmetic operations applied per step
Question bank coverage by sub-pattern
How Machine Input-Output Appears in IBPS PO
Machine Input-Output is part of the Reasoning Ability section (20% of the IBPS PO syllabus). See the full IBPS PO Prelims breakdown.
Machine Input-Output Solved Examples for IBPS PO
7 exam-pattern machine input-output questions from the practice bank, each with a full solution.
Input: one two three four five Step 1: five one two three four Step 2: five four one two three Step 3: five four three one two Step 4: five four three two one What will be the final step for the input: hat coat jacket shirt sweater?
- A.sweater shirt jacket coat hatCorrect
- B.sweater shirt jacket hat coat
- C.sweater jacket shirt coat hat
- D.sweater jacket shirt hat coat
Solution
The machine sorts the words into alphabetical order. Step 1: coat hat jacket shirt sweater. Step 2: hat coat jacket shirt sweater. Step 3: jacket coat hat shirt sweater. Step 4: shirt coat hat jacket sweater. Step 5: sweater coat hat jacket shirt. Step 6: sweater shirt hat jacket coat. Step 7: sweater shirt jacket coat hat.
What is the third number from the left in Step II?
- A.24419
- B.44665
- C.22639
- D.4659Correct
- E.46817
Solution
Based on the provided input and rearrangement rules, after applying Step II, the third number from the left is 4659.
Input: go cat tiger elephant ant Step 1: elephant go cat tiger ant Step 2: elephant tiger go cat ant Step 3: elephant tiger ant go cat Step 4: elephant tiger ant cat go What would the next step be?
- A.elephant tiger ant cat goCorrect
- B.go elephant tiger ant cat
- C.cat go elephant tiger ant
- D.elephant tiger cat ant go
Solution
The machine sorts by word length (longest to shortest). Step 1: elephant go cat tiger ant. Step 2: elephant tiger go cat ant. Step 3: elephant tiger ant go cat. Step 4: elephant tiger ant cat go.
Which word is immediately to the right of ' FJPL' in Step III?
- A.CVD
- B.FJKLR
- C.FEGP
- D.FCMK
- E.None of theseCorrect
Solution
Based on the provided input and rearrangement rules, after applying Step III, none of the options are immediately to the right of 'FJPL'.
What is the difference between the highest and lowest number obtained in Step V?
- A.11
- B.13Correct
- C.6
- D.5
- E.0
Solution
Based on the provided input and rearrangement rules, after applying Step V, the difference between the highest and lowest number is 13.
What is the sum of all the numbers in Step V?
- A.27
- B.28
- C.29Correct
- D.30
- E.31
Solution
Based on the provided input and rearrangement rules, after applying Step V, the sum of all the numbers is 29.
Which of the following is the fourth word from the left in Step IV?
- A.FJKLRCorrect
- B.FPQV
- C.CFKM
- D.EJOT
- E.DVIP
Solution
Based on the provided input and rearrangement rules, after applying Step IV, the fourth word from the left is FJKLR.
Machine Input-Output — Frequently Asked Questions
How do I find the machine's rule quickly?
Compare only step 1 with the input, and step 2 with step 1: which element moved where? The rule is usually one sorted pick per step (smallest number left, alphabetical word right, or interleaved).
Can I skip to a later step without writing all steps?
Once the rule is confirmed, yes — each step fixes one or two elements, so step n is the input with the first n picks placed. Verify with one intermediate step before trusting the shortcut.
How many Machine Input-Output practice questions does Parikshala have for IBPS PO?
48 exam-pattern Machine Input-Output questions for IBPS PO Reasoning Ability, each with a step-by-step solution. Practice is free — no sign-up needed to start.