Lecture 4 – Maths Section | BPS 5–15 Intermediate Category
🎬 Lecture 4 Video
📝 Lecture 4 Notes & Guidance
Bismillah ir Rahman ir Raheem
Assalam-o-Alaikum doston!
Welcome to Lecture 4 — Maths Section on Percentage from the complete BPS 5–15 Intermediate Category free course by Miss Mono. Is lecture mein hum percentage ka basic concept, formulas, practical examples, shortcuts aur exam-oriented techniques step-by-step cover karenge — taake aap exam mein 5–10 marks asani se secure kar saken.
🔎 Lecture Overview — Kya Sikhenge
- Percentage ka basic definition aur logic
- Do major methods: (a) Jab total = 100, (b) Jab total 100 se kam ya zyada ho (formula use)
- Step-by-step examples aur practice problems
- Shortcuts aur exam tricks for fast calculation
- Homework instructions aur mini quiz
🧮 Percentage — Basic Definition (Roman Urdu)
Percentage yani 100 mein se kitna. “Per” ka matlab hai har aur “cent” yaani 100. Jab hum kehte hain 20%, iska matlab hota hai har 100 mein se 20.
📘 Jab Total = 100 (Simple Case)
Agar total marks 100 hon to percentage nikalna seedha hota hai. Example: Agar aapko 50 marks milen to percentage 50% hogi (kyunki 100 mein se 50).
📘 Jab Total ≠ 100 (Formula)
Agar total marks 100 se kam ya zyada hon to hum formula use karte hain:
| Formula |
|---|
| Percentage = (Obtained Marks × 100) ÷ Total Marks |
Example 1 (Total 80, Obtained 60)
Percentage = (60 × 100) ÷ 80 = 6000 ÷ 80 = 75%
Example 2 (Total 200, Spent 50)
Percentage = (50 × 100) ÷ 200 = 5000 ÷ 200 = 25%
🧠 Shortcuts & Tricks (Exam Friendly)
- Agar denominator ko 100 se multiply karna mushkil ho to denominator ko simplify karen (e.g., 80 → divide both numerator & denominator by common factor).
- Fractions ko percent mein convert karne ke liye pehle fraction ko decimal bana kar 100 se multiply karen.
- Proportion shortcut: obtained : total :: x : 100 → x = (obtained × 100) / total.
- Round off only at final step to avoid intermediate errors.
✍️ Step-by-Step Approach for Solving Percentage Questions
- Question ko dhyan se padhen — identify karen ke total kya hai aur obtained kya hai.
- Agar total 100 ho to direct percentage likh dein.
- Agar total 100 se kam ya zyada ho to formula apply karen: (obtained × 100) ÷ total.
- Simplify aur final answer dekhen; agar exam integer chahata ho to nearest integer mein round karen.
- Jab multiple-step ho (e.g., discount then tax), to pehle step ka result nikal kar agla step apply karen.
📎 Common Exam-style Problems (Practice)
- Agar kisi paper ka total 80 ho aur student ko 60 milen to percentage kya hogi? (Ans: 75%)
- Agar aapke paas ₹200 ho aur aap 50 kharch kar dein to kitna percent kharch hua? (Ans: 25%)
- 100 chocolates mein se 30 chocolates de diye to percentage kya hua? (Ans: 30%)
🖊 Homework Instructions (Lecture 4)
Homework:
- Percentage ka concept apne words mein apni notebook mein likhen (Roman Urdu/Urdu/English jo aapko asaan lage).
- Dono methods notebook mein examples ke sath likhen: Method 1 (Total = 100), Method 2 (Formula jab total ≠ 100) — kam az kam 2 examples har method ke.
- Notebook ka clear image lein aur homework submission link par upload kar dein.
Submission steps:
- Link open karen, page par available tick mark ko check karen (confirm karein ke aap ready hain).
- Type karke ya image upload karke submit karen.
- Main aapke responses check karungi aur WhatsApp channel par update dungi kaun sahi kar raha hai.
📹 Homework Submission Guide
Agar submission me koi masla aaye to Homework Submission Guide video dekhein. Video me step-by-step bataya gaya hai ke images kaise leni hain aur kaise form fill karke submit karna hai.
Direct short: Watch: How to Submit Homework (Short Guide)
📝 Mini Quiz — Lecture 4 (Try & Comment)
1) A student gets 45 out of 60. Percentage kya hui?
2) Agar kisi item ka original price ₹500 ho aur discount ₹125 mile to discount percentage kya hua?
3) 80 students me se 32 students pass hon to pass percentage kya hogi?
Apne answers comments me likhen. Main next video me in quiz questions ke step-by-step solutions share karungi.
❓ Ask Miss Mono – Submit Your Questions
Agar aapka koi specific sawal hai topic se related (percentage, examples, exam shortcuts ya homework), to yahan submit karen. Aapke sawalat IBA STS test, form filling, ya technical submissions se related ho sakte hain.
➡ Explore More Categories & Lectures
Lecture list & playlist:
- IBA STS Intermediate Category Complete Free Course — Playlist
- Lecture 1
- Lecture 2
- Lecture 3
- Lecture 4 — current page (Video above).
📚 More Resources
Main course & hub: IBA STS Study Hub — Explore All Test Preparation
Complete free course page: IBA STS BPS 5–15 Intermediate Category — Complete Free Course
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