Q1:

How many 3-digit numbers can be formed by using the digits 1 to 9 if no digit is repeated?

I am a retired Mechanical Engineer. I have over 11 years of experience as online tutor(Math.)I am able to tutor all boards. I am fully conversant with Algebra, Geometry, Trigonometry, Calculus , Descriptive statistics.I have taken over 12000 math. sessions and fully confident to tutor students up to Class 12.i teach with skype, Bitpaper white board, advanced scientific calculator and different graph programs.

I have been actively involved in teaching Class 11 students, especially in Chemistry, with a strong focus on building conceptual clarity, exam preparation, and confidence in the subject. My teaching experience includes guiding students from CBSE and state boards through both online and offline classes. I specialize in simplifying difficult topics such as Organic Chemistry, Thermodynamics, Chemical Bonding, Equilibrium, Redox Reactions, and Structure of Atom by using practical examples and easy language so that students can understand concepts without fear. While teaching Class 11 students, I follow a student-friendly and interactive approach. I begin every chapter from basic concepts and gradually move toward advanced numerical and application-based questions. This helps average as well as high-performing students learn comfortably at their own pace. I regularly conduct doubt-clearing sessions, short tests, and revision classes to ensure that students remain confident and prepared for school examinations as well as competitive exams like NEET and JEE Foundation level. My teaching method focuses on conceptual understanding rather than rote learning. I encourage students to ask questions freely and participate actively during the class. To make learning more effective, I use diagrams, flowcharts, reaction mechanisms, and real-life examples. In Organic Chemistry, I explain reaction mechanisms step-by-step, while in Physical Chemistry I train students to solve numericals with proper formulas and shortcuts. This balanced approach helps students improve both theoretical understanding and problem-solving skills. I also provide handwritten notes, important questions, sample papers, and chapter-wise assignments to help students practice regularly. I monitor students’ performance individually and guide them according to their strengths and weaknesses. Many students who initially found Chemistry difficult became more confident and improved their academic performance after attending my classes. Apart from subject knowledge, I focus on motivating students and developing disciplined study habits. I believe that every student can perform well when taught with patience, clarity, and proper guidance. My goal as a Class 11 tutor is not only to help students score good marks but also to develop genuine interest and confidence in the subject. Through continuous interaction with students and updated teaching methods, I have gained valuable experience in understanding the learning needs of Class 11 students and helping them achieve academic success effectively.

I am having more than 8+ years of experience to teach the Computer Science/ informatic Practice subject to the students of 11th class. I can teach all boards students.

I am a home tutor and teaching physics & mathematics up to class 12 for last 8 years. I am NET 2018, GATE 2013 & GATE 2011 qualified. My highest qualification is MTECH. I am an engineering graduate.

I have 14 years experience in hindi tuition , lots of student passed out in hindi with 90+. 9th - 12th all types of syllabus handled . Bangalore colleges like frank's, clarence , carmel, cmr, royal concorde , delhi public , charles and other schools. Online classes anywhere in india .