Notes, Tests & AI Tutor for Class 5–12
|
CBSE · JEE · NEET
|
24x7 Access
Student
School
Teacher
Help
Login
Home
Study
By Class
Class 5 to 12
By Subject
Maths, Physics, Chemistry & more
By Stream
Science, Commerce, Arts (11th-12th)
Chapter-wise Learning
Topic by topic, in order
NCERT Solutions
Step-by-step answers
Every chapter,
every class.
Structured notes and chapter-wise learning aligned to the CBSE syllabus — no jumping between five different apps.
Start studying
Tests
Chapter Tests
Quick checks after every chapter
Subject Tests
Broader, multi-chapter coverage
Class Tests
Every subject of your class
Mock Tests
Timed, board-exam format
Previous Year Papers
Real board exam questions
Practice Questions
Thousands, sorted by topic
Practice like
it's the real exam.
Timed mock tests that mirror the actual board exam format, with instant, question-by-question feedback.
Take a free test
Engineering
JEE Preparation
Main & Advanced in one place
JEE Main
NTA pattern MCQs & numericals
JEE Advanced
Multi-correct, partial marking
Previous Year Papers
Year & session-wise, with answers
JEE Mock Tests
Timed, with negative marking
Physics
Chapter-wise questions
Chemistry
Physical, organic, inorganic
Mathematics
Chapter-wise questions
Crack JEE,
chapter by chapter.
Previous-year questions, timed mock tests and step-by-step solutions for Physics, Chemistry and Maths.
Start JEE prep
Medical
NEET Preparation
NEET UG, all subjects
Previous Year Papers
Year-wise, with answers
NEET Mock Tests
NTA pattern, timed
Biology
Botany & Zoology chapters
Physics
Chapter-wise questions
Chemistry
Chapter-wise questions
Your NEET prep,
organised.
Chapter-wise previous-year questions and NTA-pattern mock tests for Physics, Chemistry, Botany and Zoology.
Start NEET prep
AI Tutor
AI Doubt Solver
Ask anything, get a real answer
Step-by-Step Solutions
Not just the answer — the method
Doubt Board
Ask the community too
Your AI Tutor is
always ready.
Ask a question at 11pm the night before an exam. No waiting for a teacher to be free — real answers, right away.
Try AI Tutor free
Resources
Notes
Chapter-wise, exam-focused
Previous Papers
Real past exams, free to view
Digital Library
NCERT books, PYQs and more
Question Bank
Searchable, topic-tagged
Study Materials & Blog
Tips, guides and updates
Pricing
Free and Premium plans
Schools
Find schools and school portals
One library.
Everything you need.
Notes, past papers, NCERT solutions and a searchable question bank — all in one place, not scattered across five apps.
Browse the library
Schools
Get Started
Home
Study
By Class
By Subject
By Stream
Chapter-wise Learning
NCERT Solutions
Tests
Chapter Tests
Subject Tests
Class Tests
Mock Tests
Previous Year Papers
Practice Questions
Engineering
JEE Preparation
JEE Main
JEE Advanced
JEE Previous Year Papers
JEE Mock Tests
Medical
NEET Preparation
NEET Previous Year Papers
NEET Mock Tests
Biology (Botany & Zoology)
AI Tutor
AI Doubt Solver
Step-by-Step Solutions
Doubt Board
Resources
Notes
Previous Papers
Digital Library
Question Bank
Study Materials & Blog
Pricing
Schools
Log in
Get Started
π
√x
x² + y²
Σ
∞
sin θ
Class 9
›
Mathematics
›
The World of Algorithms - New Edition
The World of Algorithms - New Edition
Free chapter
The World of Algorithms - New Edition
1 section