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Input-Output (Basic) - Expert Level: shortcut methods EXPERT

Comprehensive self assessment worksheet covering 20 expert-level input-output (basic) problems. Worksheet 28 of 30 emphasizes shortcut methods. Master aptitude training, reasoning skills, logical ability through detailed explanations. Difficulty: challenging problems and time-bound practice. Tailored for expert-level preparation.

📝 Worksheet 28 of 30 • 20 questions • ⏱️ Estimated time: 20 minutes • 🎯 Expert level

What you'll learn in this worksheet:
Your progress through Input-Output (Basic)
Worksheet 28 of 30 (93% complete)

Question 1

Input: 54 69 94 49 43 90 Step 1: Calculate digit sums → 54(9) 69(15) 94(13) 49(13) 43(7) 90(9) Step 2: Sort by digit sum (ascending) → 43 54 90 49 94 69 What is the final sorted output?
Numbers sorted by sum of their digits (smallest sum first). If sums are equal, numbers sorted by value: 43 54 90 49 94 69
digit-sum, numerical

Question 2

Input: 66 78 67 28 97 11 Step 1: Calculate digit sums → 66(12) 78(15) 67(13) 28(10) 97(16) 11(2) Step 2: Sort by digit sum (ascending) → 11 28 66 67 78 97 What is the final sorted output?
Numbers sorted by sum of their digits (smallest sum first). If sums are equal, numbers sorted by value: 11 28 66 67 78 97
digit-sum, numerical

Question 3

Input: hat dog fish ant ice Step 1: Identify vowel-starting words: ant ice Step 2: Identify consonant-starting words: dog fish hat Step 3: Sort each group alphabetically Step 4: Combine (vowels first, then consonants): ant ice dog fish hat What is the final output?
Words starting with vowels come first (sorted alphabetically), followed by words starting with consonants (sorted alphabetically): ant ice dog fish hat
vowel, consonant, separation

Question 4

Input: 62 90 87 98 24 77 Step 1: Calculate digit sums → 62(8) 90(9) 87(15) 98(17) 24(6) 77(14) Step 2: Sort by digit sum (ascending) → 24 62 90 77 87 98 What is the final sorted output?
Numbers sorted by sum of their digits (smallest sum first). If sums are equal, numbers sorted by value: 24 62 90 77 87 98
digit-sum, numerical

Question 5

Input: fish dog bird lion horse Step 1: dog fish bird lion horse Step 2: dog bird fish lion horse Step 3: dog bird fish horse lion What will be the final output after complete sorting?
The words are arranged in alphabetical (dictionary) order. fish dog bird lion horse → bird dog fish horse lion
alphabetical, sorting

Question 6

Input: 47 85 99 21 55 29 Step 1: Calculate digit sums → 47(11) 85(13) 99(18) 21(3) 55(10) 29(11) Step 2: Sort by digit sum (ascending) → 21 55 29 47 85 99 What is the final sorted output?
Numbers sorted by sum of their digits (smallest sum first). If sums are equal, numbers sorted by value: 21 55 29 47 85 99
digit-sum, numerical

Question 7

Input: 46 53 60 85 43 39 Step 1: Calculate digit sums → 46(10) 53(8) 60(6) 85(13) 43(7) 39(12) Step 2: Sort by digit sum (ascending) → 60 43 53 46 39 85 What is the final sorted output?
Numbers sorted by sum of their digits (smallest sum first). If sums are equal, numbers sorted by value: 60 43 53 46 39 85
digit-sum, numerical

Question 8

Input: ant dog tiger lion bird Step 1: ant dog lion tiger bird Step 2: ant dog lion bird tiger Step 3: ant dog bird lion tiger What will be the final output after complete sorting?
The words are arranged in alphabetical (dictionary) order. ant dog tiger lion bird → ant bird dog lion tiger
alphabetical, sorting

Question 9

Input: dog bird monkey fish ant Step 1: bird dog monkey fish ant Step 2: bird dog fish monkey ant Step 3: bird dog fish ant monkey What will be the final output after complete sorting?
The words are arranged in alphabetical (dictionary) order. dog bird monkey fish ant → ant bird dog fish monkey
alphabetical, sorting

Question 10

Input: refer python radar coding world Step 1: Palindromic words (read same forwards/backwards): radar refer Step 2: Non-palindromic words: coding python world Step 3: Combine (palindromes first, then others, each sorted alphabetically): radar refer coding python world What is the final output?
Palindromic words first (alphabetically sorted), then non-palindromic words (alphabetically sorted): radar refer coding python world
palindrome, word-property

Question 11

Input: 66 88 59 47 5 37 57 64 Step 1: Even numbers (sorted): 64 66 88 Step 2: Odd numbers (sorted): 5 37 47 57 59 Step 3: Combine (evens then odds): 64 66 88 5 37 47 57 59 What is the final output?
Even numbers first (sorted ascending), then odd numbers (sorted ascending): 64 66 88 5 37 47 57 59
odd-even, separation

Question 12

Input: 12 43 17 59 33 64 Step 1: Calculate digit sums → 12(3) 43(7) 17(8) 59(14) 33(6) 64(10) Step 2: Sort by digit sum (ascending) → 12 33 43 17 64 59 What is the final sorted output?
Numbers sorted by sum of their digits (smallest sum first). If sums are equal, numbers sorted by value: 12 33 43 17 64 59
digit-sum, numerical

Question 13

Input: python racecar world radar hello Step 1: Palindromic words (read same forwards/backwards): racecar radar Step 2: Non-palindromic words: hello python world Step 3: Combine (palindromes first, then others, each sorted alphabetically): racecar radar hello python world What is the final output?
Palindromic words first (alphabetically sorted), then non-palindromic words (alphabetically sorted): racecar radar hello python world
palindrome, word-property

Question 14

Input: asteroid 78 89 galaxy 45 planet Step 1: Separate & sort words → asteroid galaxy planet Step 2: Separate & sort numbers → 45 78 89 Step 3: Alternate (word, number, word, number...) → asteroid 45 galaxy 78 planet 89 What is the final arrangement?
Words sorted alphabetically, numbers sorted ascending, then placed alternately starting with a word: asteroid 45 galaxy 78 planet 89
alternating, mixed

Question 15

Input: galaxy asteroid sun 12 67 34 Step 1: Separate & sort words → asteroid galaxy sun Step 2: Separate & sort numbers → 12 34 67 Step 3: Alternate (word, number, word, number...) → asteroid 12 galaxy 34 sun 67 What is the final arrangement?
Words sorted alphabetically, numbers sorted ascending, then placed alternately starting with a word: asteroid 12 galaxy 34 sun 67
alternating, mixed

Question 16

Input: 21 62 81 94 65 22 Step 1: Calculate digit sums → 21(3) 62(8) 81(9) 94(13) 65(11) 22(4) Step 2: Sort by digit sum (ascending) → 21 22 62 81 65 94 What is the final sorted output?
Numbers sorted by sum of their digits (smallest sum first). If sums are equal, numbers sorted by value: 21 22 62 81 65 94
digit-sum, numerical

Question 17

Input: hat ball ice goat apple Step 1: Identify vowel-starting words: apple ice Step 2: Identify consonant-starting words: ball goat hat Step 3: Sort each group alphabetically Step 4: Combine (vowels first, then consonants): apple ice ball goat hat What is the final output?
Words starting with vowels come first (sorted alphabetically), followed by words starting with consonants (sorted alphabetically): apple ice ball goat hat
vowel, consonant, separation

Question 18

Input: 90 21 59 60 12 57 19 5 Step 1: Even numbers (sorted): 12 60 90 Step 2: Odd numbers (sorted): 5 19 21 57 59 Step 3: Combine (evens then odds): 12 60 90 5 19 21 57 59 What is the final output?
Even numbers first (sorted ascending), then odd numbers (sorted ascending): 12 60 90 5 19 21 57 59
odd-even, separation

Question 19

Input: 31 apple 44 date cherry 23 5 elderberry Step 1: Sorted words → apple cherry date elderberry Step 2: Sorted numbers → 5 23 31 44 Step 3: Interleave (2 words, 1 number, repeat) → apple cherry 5 date elderberry 23 31 44 What is the final output?
Words sorted alphabetically, numbers sorted ascending, then interleaved in pattern: 2 words, 1 number, repeat → apple cherry 5 date elderberry 23 31 44
interleaving, patterns

Question 20

Input: 12 31 date 56 apple cherry 44 Step 1: Sorted words → apple cherry date Step 2: Sorted numbers → 12 31 44 56 Step 3: Interleave (2 words, 1 number, repeat) → apple cherry 12 date 31 44 56 What is the final output?
Words sorted alphabetically, numbers sorted ascending, then interleaved in pattern: 2 words, 1 number, repeat → apple cherry 12 date 31 44 56
interleaving, patterns
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