Simple Interest Important Practice Questions (Set 2)

Duration: 11 min

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Inside: a video lesson and guided study material.

Module outline

  1. About the Course: About the Course
  2. Section 1 | Language (Hindi): भाषा, लिपि, ध्वनि, वर्ण, अक्षर, स्वर, व्यंजन, मात्रा और संयुक्ताक्षर, वर्तनी, वर्ण-विन्यास, अनुस्वार, अनुनासिक, चंद्रबिंदु और ‘र’ के रूप, शब्द, पद और शब्द-भेद, संज्ञा और सर्वनाम, विशेषण और क्रिया, लिंग, वचन, पुरुष और कारक, काल, वाच्य, वाक्य और वाक्य-भेद, संधि, समास, विलोम शब्द, पर्यायवाची शब्द, सामान्य अशुद्धियाँ, अनेक शब्दों के लिए एक शब्द, मुहावरे और लोकोक्तियाँ, अपठित गद्यांश और अपठित पद्यांश, Multi-Topic Content (Cross-Concept Material), वर्णमाला
  3. Section 1 | Language (उर्दू भाषा — 22 प्रश्न (निश्चित)): Spelling & Diacritics, Grammar (اسم, فعل, صفت, ضمیر), Vocabulary, Idioms & Proverbs, Comprehension
  4. Section 1 | Language (বাংলা / बांग्ला भाषा — 22 प्रश्न (निश्चित)): Bangla Script and Sounds, Bangla Grammar and Usage, Bangla Word Formation and Vocabulary, Reading and Text Interpretation
  5. Section 1 | Language (English): Vocabulary, Noun, Subject Verb Agreement (Verb Noun Agreement), Adjectives, Tenses, Pronoun, Verb, Adverb, Preposition, Articles, Determiner, Conjunction, Modals, Active Passive Voice (Voice), Direct and Indirect Speech, Sentence Correction (Error Correction), Sentence Completion (Fill in the blanks), Sentence Construction, Sentence Re-arrangements (Para Jumbles) (Narrative Sequencing), Comprehension / Reading Comprehension / Unseen Passages (Critical Reasoning) (Paragraph Questions), Cloze Test (Cloze Passage), Verbal Analogy (Word Based Analogy), Facts, Inference and Judgements
  6. Section 2 | Primary Maths & Reasoning: Ratio and Proportion (Ratios), Divisibility Rules, Mixture and Alligation, Permutation and Combination, Number System, HCF LCM, Sequence and Series (Series), Speed Time and Distance, Series (Number and Letter Series) (Numerical Relations and Reasoning), Coding Decoding, Non Verbal Reasoning (Spatial Aptitude) (Spatial Reasoning) (Visual Reasoning), Percentage, Average, Profit and Loss, Simple Interest and Compound Interest, Time and Work, Mensuration and Geometry, Age Problems, Arithmetic, Powers and Exponents (Surds and Indices), Algebra, Probability, Trigonometry, Syllogisms, Seating Arrangements, Blood Relations, Directions (Direction Test), Analytical Reasoning (Counting Figures Reasoning), Puzzle Solving (Puzzles), Calendar, Clock, Cubes & Dices, Venn Diagram, Data Arrangement, Inequality, Analogy, Ranking, Order and Sequence
  7. Section 2 | General Awareness (GK + Current Affairs): Polity, Physics, Biology, State Wise GK, Chemistry, History, Geography, Indian Economy, Environment, GK- Current Affairs, Static General Knowledge
  8. Section 3 | Computer System and Org. (CSO): Basics of COA, Floating Point Rep, Cache Memory Organization, Instr Formats & Modes, Programming the Basic Computer, Input Output Organisation, Register Transfer and Microoperations, Control Unit Design
  9. Section 3 | Database Management System: Basics of DBMS, ER Diagram, Relational Model & Functional Dependencies, Keys & Integrity Constraints, Normalization (1NF - BCNF), Decomposition Properties & 4NF, SQL, File Organization & Indexing, Relational Algebra, Relational Calculus, Transaction Management, Concurrency Control
  10. Section 3 | Operating System: Introduction to OS, Process Management, CPU Scheduling, Threads & Process Creation, Memory Management, Virtual Memory, Disc Scheduling, File Management, Process Synchronization
  11. Section 3 | Computer Networks: Introduction to CN, Data Communication, DLL: Access Control, DLL: Flow Control, DLL: Error Control, Data Link Layer - Ethernet, Net Layer: IPv4 & Proto, Net Layer: IP Addressing, Transport Layer Services, TL: Congestion & UDP, Application Layer, Hardware basics
  12. Section 3 | Data Structures: Introduction to DS, Array, Stack, Queue, Linked List, Tree, Graphs, Hashing, Algorithm Analysis, Time Complexity Analysis, Sorting Algorithms, Greedy Algorithms, Minimum Spanning Trees, Shortest Path Algos
  13. Section 3 | Theory Of Computation & Compiler Design: Introduction to TOC, Deterministic FA (DFA), Non-Deterministic FA, Regular Expressions, Grammar, Regular Language Properties, Moore & Mealy Machines, Pushdown Automata & CFG, Turing Machines, Intro to Compilers, Lexical Analysis, Grammar & CFG, Syntax Analysis: Top-Down, Syntax Analysis: Bottom-Up, Semantic Analysis & SDT, Intermediate Code Gen, Code Optimization
  14. Section 3 | Emerging Trends (AI, Societal Ethics & MS Office): Artificial Intelligence, Emerging Tech Trends, Society, Law & Ethics, MS Office Applications
  15. Section 3 | Software Engineering: Fundamentals of Software Engineering, Software Requirements and Quality Assurance, Software Design, Estimation and Metrics, Software Maintenance and Configuration Management, Software Testing
  16. Section 3 | C Programming: C Fundamentals, Control Flow, Functions, Arrays & Pointers, Storage Classes, Structures & Enums, DMA, Macros, Scoping & File Handling
  17. Section 3 | OOPS, C++, JAVA, HTML: OOPS with C++, Java, HTML Basics, CSS
  18. Section 3 | Java: Java Fundamentals, Array, String, IO & References
  19. Section 3 | Python: Introduction to Python, Tokens, Variables, Data Types, I/O, Operators & Expressions, Control Flow & Looping, Collections & Strings, Functions & Modules, File Handling & Data Analysis
  20. Section 3 | Digital Electronics: Digital Systems & Boolean Basics, Logic Gates & Hardware, Boolean Expression, Boolean Minimization, Combinational Circuit, Sequential Circuits, Number System, Number Representation
  21. Section 3 | Multimedia: Multimedia
  22. BPSC Previous Year Papers:
  23. BPSC Full Mock Tests:
AI summary & chapters

AI Summary

An AI-generated summary of this video lecture.

This educational video is a lecture on simple and compound interest, presented by an instructor named Yash Jain. The video begins with an introductory slide defining the topic, followed by a segment featuring a woman, Janvi Kapoor, who is used as a character in the problems. The main content consists of three worked examples. The first problem asks for the total amount to be returned after 2.5 years on a principal of Rs. 8500 at 9% simple interest, which is solved by calculating the interest for 2 years (18%) and 0.5 years (4.5%), totaling 22.5%, and then adding it to the principal. The second problem involves two equal amounts borrowed for 4 and 5 years at 7.5% per annum, with a difference in interest of Rs. 150; the solution uses the formula for simple interest to find the principal. The third problem states that investing for 6 years instead of 4 years yields Rs. 5015 more interest, and the rate is found by setting up an equation for the difference in interest. The video concludes with a 'Thank You' screen.

Chapters

  1. 0:00 – 2:00 00:00-02:00

    The video opens with a title slide for a lesson on 'Simple and Compound Interest'. This is followed by a segment featuring a woman, Janvi Kapoor, who is the subject of the problems. The instructor, Yash Jain, is visible in a small window, introducing the topic. The on-screen text includes the title 'Simple Interest and Compound Interest' and the name 'YASH JAIN'. The instructor's name, 'YASH JAIN SIR', and his title, 'KNOWLEDGE GATE EDUCATOR', are also displayed. The background is a split screen with a house made of a dollar bill and stacks of coins on the left, and a colorful, patterned background with the instructor on the right.

  2. 2:00 – 5:00 02:00-05:00

    The video transitions to the first problem. The on-screen text displays the question: 'Q: Janvi Kapoor borrows Rs.8500 on simple interest at the rate of 9% per annum. What amount will she have to return after 2 and half years?'. The options are listed as (a) Rs. 10412.50, (b) Rs. 11412.50, (c) Rs. 12412.50, (d) Rs. 13412.50. The instructor begins to solve the problem by writing the formula for simple interest, SI = (P * R * T) / 100, on the screen. He calculates the interest for 2 years as 18% of 8500 and for 0.5 years as 4.5% of 8500, summing them to 22.5% of 8500. He then calculates the total interest as Rs. 1912.5 and adds it to the principal to get the final amount of Rs. 10412.50, which corresponds to option (a).

  3. 5:00 – 10:00 05:00-10:00

    The video presents the second problem. The on-screen text reads: 'Q: Two equal amount A and B are given on borrow at the rate of 7.5% per annum for 4 years and 5 years respectively. If the difference of simple interest received by them is Rs. 150. Find the amount?'. The options are (a) Rs.500, (b) Rs.1000, (c) Rs.2000, (d) Rs.3000. The instructor sets up the equation for the difference in interest: SI2 - SI1 = 150. He substitutes the values into the formula: (P * 7.5 * 5) / 100 - (P * 7.5 * 4) / 100 = 150. This simplifies to (37.5P - 30P) / 100 = 150, which becomes 7.5P / 100 = 150. Solving for P, he finds P = 2000. The correct answer is (c) Rs.2000. The third problem is then introduced, stating: 'Q: Arun invested a sum of money on simple interest for 4 years at a definite rate of interest. If he invested the same amount for 6 years then he will receive 5015 more interest than before. What is the rate of interest?'. The options are (a) 4%, (b) 6%, (c) 8%, (d) Cannot be determined, (e) None of these. The instructor sets up the equation: SI2 - SI1 = 5015, which becomes (P * R * 6) / 100 - (P * R * 4) / 100 = 5015. This simplifies to (6PR - 4PR) / 100 = 5015, or 2PR / 100 = 5015. He then states that the rate cannot be determined without knowing the principal amount, so the answer is (d) Cannot be determined.

  4. 10:00 – 11:20 10:00-11:20

    The video concludes with a final screen. The text on the screen reads 'THANKYOU FOR WATCHING' in large, stylized font. The background is a dark, solid color. This screen serves as an outro, signaling the end of the lecture.

The video provides a structured, step-by-step tutorial on solving simple interest problems. It begins with an introduction to the topic, then uses a narrative context with a character named Janvi Kapoor to frame the problems. The core of the video is the application of the simple interest formula, SI = (P * R * T) / 100, to three distinct scenarios. The first problem demonstrates calculating the total amount for a non-integer time period by breaking it into parts. The second problem shows how to find the principal when the difference in interest for different time periods is known. The third problem illustrates a scenario where the rate cannot be determined due to insufficient information. The progression moves from basic calculation to more complex problem-solving, reinforcing the core formula through multiple examples.

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