Find the next term (Important Questions)

Duration: 9 min

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Inside: a video lesson and guided study material.

Module outline

  1. English Comprehension: Comprehension / Reading Comprehension / Unseen Passages (Critical Reasoning) (Paragraph Questions), Reading Comprehension, Vocabulary, Idioms and Phrases, Narrative Sequencing, Critical Reasoning
  2. Reasoning and Aptitude: Series (Number and Letter Series) (Numerical Relations and Reasoning), Coding Decoding, Analogy, Non Verbal Reasoning (Spatial Aptitude) (Spatial Reasoning) (Visual Reasoning), Blood Relations, Directions (Direction Test), Ranking, Order and Sequence, Logical Sequence Of Words, Seating Arrangements, Puzzle Solving (Puzzles), Syllogisms, Deductive and Inductive Reasoning (Logical Deduction and Induction) (Prepositional Reasoning), Data Sufficiency, Selection Decision Table (Decision Making), Calendar, Clock, Cubes & Dices, Data Arrangement, Venn Diagram, Analytical Reasoning (Counting Figures Reasoning), Number System, HCF LCM, Percentage, Ratio and Proportion (Ratios), Average, Profit and Loss, Simple Interest and Compound Interest, Speed Time and Distance, Mensuration and Geometry, Arithmetic, Mixture and Alligation, Age Problems, Data Interpretation, Alphabet and Word Tests, Numerical Reasoning, Number System, Averages, Mixtures and Alligation, Percentages, Series Completion, Analogy and Classification, Patterns in Two-Dimensional Figures, Coding and Decoding, Mathematical Operations, Direction Sense, Logical Deduction and Induction, Simplification and Approximation, Assembling and Grouping of Shapes, Transformation of Shapes, Three-Dimensional Patterns and Visualization, Cubes and Dice, Algebra, Traverse Surveying, Clocks and Calendars, Order, Ranking and Sequence, Constraint Puzzles, Syllogisms and Venn Diagrams, Ratio and Proportion, Mensuration, Permutations and Combinations, Project Monitoring, Resources and Safety, Profit, Loss and Discount, Sequences and Series, Powers, Surds and Logarithms, Subject-Verb Agreement, Sentence Completion, Geometry, Probability, Trigonometry, Measurement and Quantity Take-Off, Statistics, Data Sufficiency, Blood Relations, Speed, Time and Distance, Time and Work, Data Interpretation, Sequence and Series (Series), Algebra, Permutation and Combination, Combinatorics
  3. General Awareness: Physics, Chemistry, Biology, Geography, History, Polity, Indian Economy
  4. Computer Fundamentals: Basics of COA, Number System, Number Representation, Semiconductor Memories and Programmable Logic, Timing, Hazards and Testing, Processor Organization and Instructions, Number Systems and Codes, Combinational Logic Design, Combinational Logic Circuits, Number Systems and Codes
  5. Operating System: Introduction to OS, Unix OS, Linux OS
  6. C Programming: C Fundamentals, Control Flow, Functions, Arrays & Pointers, Storage Classes, Structures & Enums, DMA, Macros, Scoping & File Handling
  7. OOPS with C++ & Java: OOPS with C++, Java
  8. Database Management System: Basics of DBMS, SQL
  9. MS Office: MS Office Applications
  10. Internet & Web Technologies: Website, Browser & Services, Internet Fundamentals, Web Design & Development, Protocols & Services
AI summary & chapters

AI Summary

An AI-generated summary of this video lecture.

The lecture introduces number and letter series problem-solving, beginning with a title slide for 'Number Series - Letter Series' and a puzzle: 5, 7, 12, 19, 31, 50, ?. The instructor then presents a 'Success Mantra' slide emphasizing a three-step process for exam success, repeatedly writing the word 'Practice' and drawing arrows to each step. The main practice section focuses on 'Find the next term' questions, displaying six number series with a 90-second time limit. The instructor solves the first series (30, 34, 43, 59, 84, 120) by identifying differences as consecutive squares (2², 3², 4², 5², 6², 7²), yielding the next term as 120 + 49 = 169. The second series (9, 18, 54, 108, 324) uses alternating multipliers (×2, ×3), giving the next term as 324 × 2 = 648. A third series (43, 38, 31, 22, 11, -2) involves subtraction with decreasing differences. Later problems include a series with alternating operations (17, 98, 26, 89, 35), a multiplication series (3.25, 6.5, 19.5, 78, 390) using multipliers ×2, ×3, ×4, ×5, and a difference series (14, 30, 52, 80, 114) where first differences are 16, 22, 28, 34 and second differences are constant at +6, leading to the next term 154. The video concludes with a 'Thanks for watching' screen.

Chapters

  1. 0:00 – 2:00 00:00-02:00

    The video opens with a title slide reading 'NUMBER SERIES - LETTER SERIES' and presents the puzzle 'Find the Next Number in this series: 5, 7, 12, 19, 31, 50, ?'. It then transitions to a 'SUCCESS MANTRA' slide titled 'The 3 Step Process To Get 100% Success In Any Exam'. The instructor writes the word 'Practice' on the left and draws red arrows from it to each of three numbered steps, repeating 'Practice' above steps 2 and 3 to emphasize that practice is required at every stage. The on-screen text 'TRIED & TESTED' reinforces the reliability of this approach.

  2. 2:00 – 5:00 02:00-05:00

    A 'Questions' slide appears with the type 'Find the next term', listing six number series on an orange background, including 30, 34, 43, 59, 84, 120; 9, 18, 54, 108, 324; and 43, 38, 31, 22, 11, -2. A handwritten '90 sec' time limit is added to encourage speed. The instructor isolates the first series and calculates differences: 4, 9, 16, 25, 36, 49, identifying them as consecutive squares (2² through 7²), so the next term is 120 + 49 = 169. The second series (9, 18, 54, 108, 324) is annotated with alternating multipliers ×2 and ×3, giving the next term as 324 × 2 = 648. The third series (43, 38, 31, 22, 11, -2) is introduced with a noted difference of 5.

  3. 5:00 – 8:44 05:00-08:44

    The instructor continues with additional series. A problem involving 17, 98, 26, 89, 35 is presented with alternating operations. A multiplication series (3.25, 6.5, 19.5, 78, 390) is solved using increasing multipliers ×2, ×3, ×4, ×5, yielding the next term as 390 × 6 = 2340. A difference series (14, 30, 52, 80, 114) is analyzed: first differences are 16, 22, 28, 34, and second differences show a constant +6 pattern. The next first difference is 40, giving the next term as 114 + 40 = 154. The video ends with a 'THANKS FOR WATCHING' screen.

The lecture teaches systematic approaches to 'Find the next term' number series problems. Key methods include: (1) computing first differences and recognizing patterns such as consecutive squares; (2) identifying alternating multiplication factors like ×2, ×3; and (3) using second-order differences when first differences form an arithmetic sequence. The instructor emphasizes time management with a 90-second limit and reinforces that consistent practice across all three steps of the success process is essential. Worked examples demonstrate each pattern type clearly, providing a reusable framework for exam preparation.

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