## Remove 2 matchsticks to leave 6 triangles puzzle

Remove 2 matchsticks from the matchstick puzzle figure of 8 triangles to leave 6 triangles. How many solutions can you find? Recommended time 30 minutes...

Submitted by Atanu Chaudhuri on Tue, 28/04/2020 - 22:05

Remove 2 matchsticks from the matchstick puzzle figure of 8 triangles to leave 6 triangles. How many solutions can you find? Recommended time 30 minutes...

Submitted by Atanu Chaudhuri on Wed, 27/11/2019 - 14:44

This is the 9th matchstick puzzle with solution. You have to move 2 matchsticks in a figure made up 6 squares and form a 5 square figure, clean with no stick overlap or no stick unattached to a shape. In how many ways can you do it?

Submitted by Atanu Chaudhuri on Sun, 31/03/2019 - 23:22

Use of the rich ratio technique of multiple of ratio value helps to solve a broad spectrum of ratio problems and specifically many standard number or age ratio problems elegantly in a few steps much faster than conventional procedural methods. The chosen problem here is a tricky one and we will solve it using multiple of ratio value technique as well as conventionally to highlight the power of the rich ratio technique...

Submitted by Atanu Chaudhuri on Thu, 28/03/2019 - 01:35

In this 11th video session on SSC CGL level Algebra problem solving in a few steps, a specially chosen surd algebra problem is solved to highlight the application of the powerful componendo dividendo method. A conventional solution without use of any advanced concepts is also explained. Both are quick solutions. The concepts and methods should prove valuable in addition for SSC CGL Tier II, CAT or GMAT where algebra is a topic...

Submitted by Atanu Chaudhuri on Wed, 27/03/2019 - 22:03

One SSC CGL level difficult algebra problem is chosen in this video session and solved in two different ways, both in quick time. By identification of a key pattern, at first the problem is solved in no time and in the second instance, the systematic method of coefficient comparison is used for solving the problem also quickly enough. The concepts and methods should prove valuable additionally for SSC CGL Tier II, CAT or GMAT where algebra is a topic...

Submitted by Atanu Chaudhuri on Sun, 24/03/2019 - 03:09

In this 9th video on SSC CGL Algebra solving, the chosen problem is solved lightning quick by first dealing with a continued equation and then discovering a special relationship on the input variables. It is again solved using an often used rule of sum of inverses on surd variables nearly as quickly. The second one is a more concept based method on pattern identification and properties of sum of inverses on surd variables. This video should be useful for SSC CGL Tier II, CAT or GMAT as well...

Submitted by Atanu Chaudhuri on Mon, 18/03/2019 - 00:28

Two selected SSC CGL level algebra problems are solved in a few steps. The first needed mathematical reasoning and pattern identification, while the second problem is solved first in a simple and quick straightforward method and second by componendo dividend equally fast. This is application of many ways technique. The concepts and methods should prove valuable additionally for SSC CGL Tier II, CAT or GMAT where algebra is a topic...

Submitted by Atanu Chaudhuri on Thu, 07/02/2019 - 02:58

In profit and loss problems when price or profit changes by certain percentages, without calculating the actual changed values and just by using the change and its effect, solution can be achieved very fast. We would solve two problems on profit and loss to highlight the power of this technique...

Submitted by Atanu Chaudhuri on Tue, 05/02/2019 - 03:03

We have already treated an interesting type of profit and loss problem with equal sale prices and equal profit and loss figures in two transactions. This session we will be solving such a problem with equal sale prices but with unequal profit and loss percentages very fast and in two ways. We will use basic and rich profit and loss concepts, fraction concepts and mathematical reasoning to achieve the speed and elegance...

Submitted by Atanu Chaudhuri on Sun, 03/02/2019 - 00:15

The chosen problem in this session is awkward and if you attempt to solve it through conventional deductions, it would be tedious and time consuming. You may even lose your way in confusion. Instead, if you are able to identify useful patterns and apply mathematical reasoning, solution would take just a few tens of seconds...