Class 7 | Decimal & Fraction | UPSC CSAT Number System PYQ Series | All PYQs 2011 से अब तक

This is Class #7 of the chapter Decimal and Fraction (दशमलव और भिन्न) of UPSC CSAT Number System PYQ Series ---------- This Number System PYQ Series covers ALL Previous Year Questions (PYQs from 2011 onwards) related to Number System asked by UPSC in CSAT or General Studies Paper - II of Civil Services (P) Examination (2011 onwards). ▶️ Playlist Number System PYQ Series    • CSAT PYQs 2011–Now | Number System | Compl...   ---------- This session is specially designed for UPSC Civil Services (CSE) aspirants who want to build strong conceptual clarity and prepare in an exam-oriented manner, instead of relying on shortcuts or rote learning. ---------- In this class, Pooja Gulati, AIR 22, SSC CGL explains CSAT questions the way UPSC expects aspirants to think — with logic, structure, and clarity. ---------- 🎯 Why This Class Is Important for CSAT 27 out of 36 Question in Math Section of CSAT were from Number System, i.e., ~75% of the Math Section of CSAT Paper was Number System. It is utmost important to Master Number System to sail through CSAT Number System is one of the most recurring areas in CSAT, UPSC twists same concepts again and again. Number System Questions are concept-heavy, not calculation-heavy Number System form the foundation for all advanced topics Ideal starting point for beginners and non-maths background aspirants This class will help you develop the right mindset for CSAT — focusing on why a solution works, not just how to solve it. ---------- Timestamps/Chapters 00:00 Introduction | Decimal & Fraction 00:13 UPSC CSAT 2020 PYQ | The recurring decimal representation 1.272727..... is equivalent to? | Recurring Decimal Question 01:57 UPSC CSAT 2021 PYQ | A boy plays with a ball and he drops it from a height of 1.5 m. Every time the ball hits the ground, it bounces back to attain a height 4/5th of the previous height | Bouncing Ball Question 08:24 UPSC CSAT 2020 PYQ | Which one of the following will have minimum change in its value if 5 is added to both numerator and the denominator of the fractions | Change in fraction Question 17:30 UPSC CSAT 2019 PYQ | If the numerator and denominator of a proper fraction are increased by the same positive quantity which is greater than zero, the resulting fraction is? | Change in Fraction Question 21:50 UPSC CSAT 2017 PYQ | If there is a policy that 1/3rd of a population of a community has migrated every year from one place to some other place | Population Migration Question 26:34 UPSC CSAT 2016 PYQ | In a class, there are 18 very tall boys. If these constitute three-fourths of the boys and the total number | Ratio Distribution Question 28:42 UPSC CSAT 2014 PYQ| For a charity show, the total tickets sold were 420. Half of these tickets were sold at the rate of Rs. 5 each | Ratio Question ---------------------------------------------------------------------------------------------------------------------------------- 🔹 About Konceptree Konceptree is a concept-driven learning initiative by Pooja Gulati (AIR 22, SSC CGL), dedicated to helping UPSC aspirants crack CSAT through: PYQ-first approach Logical thinking Exam-oriented preparation No shortcuts. Only understanding. ---------------------------------------------------------------------------------------------------------------------------------- 🌐 Connect With Konceptree (Official Platforms) 📢 Telegram (Free CSAT PYQs | Notes | Updates): 👉 https://t.me/+fQxlpVOrbiEzMGJl 📲 WhatsApp Channel (Daily CSAT Insights): 👉 https://whatsapp.com/channel/0029VbBx... 📸 Instagram: 👉   / konceptree   📘 Facebook: 👉   / konceptree   ---------------------------------------------------------------------------------------------------------------------------------- 🔔 Like | Share | Subscribe for complete CSAT PYQ coverage till 2026. #upsc #csat #upsc2026 #csat2026 #numbersystem #decimalandfraction #csatpyq #csatmaths #upscprelims #basicnumeracy #konceptree #pojagulati #sscair22