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Problem solving techniques

How to solve SSC CGL Algebra mentally in quick time 16 video, Pattern based Algebra technique

The problem chosen in this 16th video on SSC CGL level Algebra problem solving in a few steps is fairly large but could be solved in mind by first simplifying the problem expression using component expression substitution, second by identifying the critical pattern and last by applying the three-variable zero sum principle. Working of this principle based technique is explained. The concepts and techniques are valuable as these help to solve a large variety of algebra problems in just a few steps. The video should be useful for SSC CGL Tier II, CAT or GMAT as well...

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How to solve SSC CGL Algebra mentally in quick time 15 video, Patterns, Mathematical Reasoning

The problem chosen in this 15th video on SSC CGL level Algebra problem solving in a few steps is not so difficult and could be solved very quickly using pattern based mathematical reasoning. The concepts and techniques are valuable as these help to solve a large variety of algebra problems in just a few steps. The video should be useful for SSC CGL Tier II, CAT or GMAT as well...

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How to solve SSC CGL Algebra quickly in a few steps 14 video, hard algebra

A complex problem is solved in this 14th video on SSC CGL level difficult Algebra problem solving in a few steps, first by applying a general algebra problem solving technique and then by a specific pattern based powerful algebraic problem solving technique. At the end, a second simpler problem is also solved using the pattern based technique. The video should be useful for SSC CGL Tier II, CAT or GMAT as well...

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SSC CGL Algebra solving quickly 13, A novel approach

We have solved an apparently unsolvable problem in this 13th video session on SSC CGL level Algebra problem solving in a few steps. We could find no way to transform the given expression to get the value of the target expression, nor could we evaluate the values of three variables directly from the given expression. As these two main approaches by which most competitive algebra problems are solved failed, we had to resort to a novel method using trial of choice values against target expression for feasibility and then verification of the values thus obtained from the given expression. We have worked backwards. Finally, the solution was quick and satisfactory and it taught us a few new things about how to solve problems. The concepts and methods should prove valuable in addition, for SSC CGL Tier II, CAT or GMAT where algebra is a topic...

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How to solve SSC CGL level Algebra problem in a few steps 12 video

In this 12th video session on SSC CGL level Algebra problem solving in a few steps, two special problems are chosen. The first could be solved in no time by mathematical reasoning and key pattern identification. The second problem is more difficult and we used a special strategy for solving problems involving a series of terms along with mathematical reasoning, key pattern identification and advanced form of sum of inverses property. Finally, 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...

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How to solve SSC CGL level Algebra problem in a few steps 11 video

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...

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How to solve SSC CGL level Algebra problem in a few steps 10 video

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...

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Monkey and the coconuts puzzle with solutions

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An older version of the monkey and the coconuts puzzle was modified by short story writer Ben Williams and published nearly a century ago. From then on the intriguing puzzle attained the status of one of the most attempted and least solved math puzzles of all time. We will present here easily understandable solutions to both using mathematical reasoning and for the modified version using in addition systematic enumeration…

How to solve difficult Time and Work problems in simpler steps, type 3

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In a large number of math problems involving Time and Work, when more than one group of workers each comprising of a certain number of members, complete a job taking their own time, and the question is to find time taken by similar groups of workers but with different number of members, worker equivalence method invariably leads to much faster conceptual solution with greatly reduced calculation load...

Bank PO type high level floor stay reasoning puzzle solved in quick steps 4

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In this fourth session on reasoning puzzles for Bank PO exams, the puzzle chosen is a floor stay puzzle that has fairly large number of conditions as well as is a three variable reasoning puzzle that is not easy. Majority of the basic and advanced patterns and methods for reasoning puzzle solving needed to be used for quick solution of this well-formed tricky problem...

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