Average: Part 1

Introduction

2:28mins

Calender

8:21mins

Permutations: Part 1

7:22mins

Permutations: Part 2

8:36mins

Cube Root

5:45mins

Average: Part 1

4:36mins

Average: Part 2

7:15mins

Chain Rule: Part 1

5:57mins

Chain Rule: Part 2

7:42mins

Boats and Streams

4:35mins

How to find remainder in seconds

5:06mins

Square roots in seconds

5:01mins

Cube of a number part 1

7:14mins

Cube of a number part 2

6:33mins

Problems on ages part 1

4:35mins

Problems on ages part 2

6:11mins

Finding the rank of the word within seconds

8:40mins