Abstraction technique | SureSolv

Abstraction technique

How to solve SSC CGL level Profit and loss problems by change analysis in a few steps 6

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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...

How to solve a SSC CGL level Profit and loss problem with equal sale price in a few steps 5

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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...

How to solve in a few steps, Profit and loss problem 1 brief

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A man sells two wrist watches one at a profit of 30% and another at a loss of 30%, but each at a same selling price of Rs.400. The net profit or loss is to be found out. This type of problem can be solved following clear steps based on basic and rich concepts of profit and loss within a minute with ease...

How a real life problem is solved - to buy or not to buy a new washing machine

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This was a simple act of domain mapping using abstraction. The nature of fault was generalized to body repair, detaching it from the domain of washing machines. We were now on the lookout for a reliable mechanic in the more general higher layer domain of metal body repair...

SSC CGL level Solution Set 60, Fractions indices and surds 4

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This is the 60th solution set of 10 practice problem exercise for SSC CGL exam and 4th on topic fractions indices and surds. Students must complete the corresponding question set in prescribed time first and then only refer to this solution set for extracting maximum benefits from this resource...

How to solve a difficult SSC CGL level Profit and loss problem in a few steps 4

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Basic profit and loss concepts though are simple, which of the price values to be used as reference for applying profit or discount percentages sometimes create doubts. Further, the free offer concept and easily visible option for calculation of actual price values not only complicates the situation, but introduces harmful calculation delay...

SSC CGL level Solution Set 51, Algebra 12

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This is the 51st solution set of 10 practice problem exercise for SSC CGL exam and 12th on topic Algebra. For maximum gains, the test should be taken first, that is obvious. But more importantly, to absorb the concepts, techniques and deductive reasoning elaborated through these solutions, one must solve many problems in a systematic manner using this conceptual analytical approach. One can learn well only by practicing learning by doing...

SSC CGL level Solution Set 45, Algebra 11

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This is the 45th solution set of 10 practice problem exercise for SSC CGL exam and 11th on topic Algebra. For maximum gains, the test should be taken first, that is obvious. But more importantly, to absorb the concepts, techniques and deductive reasoning elaborated through these solutions, one must solve many problems in a systematic manner using this conceptual analytical approach. One can learn well only by practicing learning by doing...

Basic and Rich Geometry Concepts Part 6, Proof of triangle area from medians

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Medians are one of the most important set of elements related to a triangle. The symmetry associated with the medians give rise to a rich set of concepts and relations. In addition to a number of important area related concepts, we will discuss here how to find the area of a triangle from the given length of its medians...

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