07:10

Fold square paper to triangular pyramid | Find height of the pyramid | Paper folding puzzle

05:33

Two squares in a semi-circle Find area of squares, diameter is 10 units PRMO RMO NTSE INMO IIT-JEE

04:06

Find area of one triangle | One simple trick to avoid unnecessary calculations | PRMO RMO NMTC

03:00

World's Hardest "Chess" Puzzle | How to place 4 Queens and 1 Bishop to cover the entire chess board

02:24

World's hardest "Chess puzzle" | Fun Puzzles | Chess piece placement puzzle

04:22

Interesting Square Problem | Intersecting diagonals and angle bisector | PRMO RMO INMO NMTC NTSE |

03:32

Solution to world's hardest Paper puzzle | Fum Math | Math puzzle | Math Quiz

01:16

World's hardest Paper puzzle | Fum Math | Math puzzle | Math Quiz

04:19

Menelaus theorem : Proof and derivation | Transversal cutting a triangle | PRMO RMO INMO IMO | NMTC

05:50

Stewarts theorem: Three Collinear points, Proof & derivation, Geometry Straight lines & triangles

06:11

World's hardest Boating puzzle from the book "World's hardest puzzles" | Competitive Exams

14:06

Very hard problem | Count all triangles | Total Number of triangles | PRMO RMO INMO IMO NMTC NTSE

04:24

Very Interesting Problem | Square Number in a triangle | Triangles in a triangle | PRMO RMO

06:38

Find Area of the shaded region | Square on Median | Medium Hard | PRMO RMO INMO NMTC NTSE IBPS

04:59

Derivation : Formula to find the length of a median of a triangle ma=(1/2) sqrt(2b^2+2c^2-a^2)

03:33

See and solve Easy | Find area of total figure | Ratio of areas in similar triangles PRMO NMTC NTSE

06:59

How to find the total number of factors of any given number | Derivation PRMO RMO NTSE Number theory

10:45

Problem with inverse of roots of a cubic equation PRMO RMO JEE INMO NTSE | HARD | Roots of equation

06:06

Hard Geometry Problem Find Length of perpendicular, where area of ABCD = 24 | PRMO RMO INMO SSB IMO

06:26

Interesting String puzzle | Folded string puzzle | PRMO RMO INMO SSB IBPS NTSE IMO

03:11

Example using Ceva's theorem | A problem which became very easy after using Ceva's theorem

05:28

Proof of Ceva's theorem | PRMO RMO INMO IMO SSB NTSE

06:45

Find area of the quarter circle whose radius is not given | Hard | PRMO RMO INMO SSB IBPS

05:09

A folded paper puzzle | Folded Rectangle Puzzle | PRMO RMO INMO SSB IBPS

04:55

Finding roots of a complicated looking expression | Solve for x | PRMO RMO SSB IBPS

08:12

Four circles tangent to each other in a Hexagon Find area of two smallest circles PRMO RMO IMO INMO

06:25

Area of small convex hexagon made by two overlapping triangles Hard Problem and Simple solution PRMO

04:23

Two ways of solving an interesting problem | Find Radius of the circle | PRMO RMO INMO SSB

00:16

Circles | Area of shaded region | Solution without touching a pen | A very short fun video | PRMO

04:43

Find length of the chord, two other chords are given | PRMO RMO SSB INMO

04:20

A fun Puzzle for this tough time (COVID 19) | Stay home Stay safe | Enjoy solving

04:58

Finding Angle | A very difficult problem with easy solution | PRMO RMO INMO SSB SSC IMO Geometry

02:16

Find radius of the circle when two intersecting chords are given RMO INMO PRMO SSB IMO IBPS

06:21

Extremely hard problem made easy | Two squares shaded region | PRMO RMO INMO IMO SSB

02:35

Find Angle of a triangle in a square A difficult problem with interesting solution PRMO RMO INMO IMO

04:13

Derivation of formula to find the Radius of the circumcircle | Why and How | PRMO RMO INMO IMO

02:52

Four squares in circle area Find the area of the circle

05:13

Hard Problem | Find Angle x | PRMO RMO INMO IMO Math Olympiads SSC

09:37

Find the sides of the pentagon made by joining points of 5-pointed star | RMO INMO IMO SSC

02:52

Scary problem & a simple solution, Number of perfect squares can using 20 0s, 20 1s, 20 2s & 20 3s.

03:43

Area of moon shaped portions of the circles | Tricky problem | Simple Solution PRMO RMO IMO

03:45

Hardest Problem ever | Find the Area of the biggest Square | Easy Solution | PRMO RMO IMO SSC

04:47

Most popular WhatsApp puzzle during Covid 19 lockdown | Area of the square inside another square

06:40

PRMO 2015-16 Tricky problem for High School O is a random point in ABC find OD/AD + OE/BE + OF/CF

03:52

A semicircle and a tangent inscribed in a square Ratio of areas of shaded region and unshaded region

04:59

Very difficult challenging problem Find length of chord PQ, circle inscribed in a rectangle PRMO RMO

06:54

Remainders not same, Difference not same, Find x, divided by 13,15, 19 give remainders 1,2,3

05:21

Find the area of the shaded region | Mensuration | PRMO NMTC Mental Ability | Trapezoid | IBPS Bank

05:53

What ratio is shaded ? Four equilateral triangles inscribed in a rectangle PRMO RMO IBPS IMO Mental

03:21

Find the sum of the digits of a long sequence, last term is 321 digit long 9+99+999 + ...(321 terms)

08:17

Extremely hard geometry problem | Find radius of the smallest circle Three circles RMO IMO INMO SSB

05:37

Find remainder of [(257)^33 + 46]^26 / 50 a very hard problem solved using Number Theory

06:57

Hard problem in mensuration | Area of the shaded region | PRMO | RMO | Mental ability

04:18

How to find Equation of parallel and Perpendicular lines to a given line y = mx + c

02:52

Shortcut to remember values and conversions of trigonometric ratios (T-ratios) in different quadrant

06:12

How and why | different equations of lines | y = mx + c, line passing through one and two points

04:15

How and why T Rstios, Tan(90-A) Tan(90+A) Tan180-A tan 180+A tan 270-A tan 270+A tan 360-A cot 270-A

09:58

Sin(90-A), Sin(90+A), Cos(180-A), Cos(180+A), Sin(270-A), Sin(270+A),Cos(360-A) How Why Trigonometry

05:54

A tricky problem in rectangles | Olympiads, Bank PO, IBPS, PRMO NMTC IMO

05:36

Very Very Tricky problem | Next Perihelion together | HARD RMO, PRMO, NMTC, Mental Ability, Olympiad