This is not specific to any exam. Each article highlights how difficult problems can be solved say in 3 steps instead of conventional 10 steps.
Under this section we will solve typical math problems that a student might find difficult when preparing for competitive tests such as SSC CGL, CAT, GRE etc. We will also cover Secondary school level or even occasionally Olympiad level problems.
The chief criteria that will be common to the problems here will be three:
We don't like to deal with laborious problems. Generally each of these problems can be solved in a number of ways.
As we teach efficient problem solving as a subject, we will always try to find the easiest way to solve a problem explaining the strategy and the process that were required to reach such a quick solution.
It means, each problem and its solution that we explain here won't just be for that specific problem. More importantly, the underlying concepts about how the solution was reached efficiently and in very quick time, form the most valuable treasure to be recognized and owned by the student by understanding the concepts and applying the concepts in future problems.
For quick solution of ratio proportion problems use multiple of ratio value technique. Here, a tricky age ratio problem is solved very fast to show how.
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...
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...
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...
Master the variable ratio equality trick in SSC CGL Algebra. Learn to solve hard algebra problems in competitive tests quickly and boost your exam score.
How to solve difficult time and work problems is explained by solving selected time and work problems with groups of men and women working.
Learn SSC CGL surd algebra smart solution by repeated componendo dividendo trick. know how interaction of inverses further speeds up the solution.
With initial problem analysis and application of trigonometric expression simplifying and problem solving strategies, the problems chosen in this sixth NCERT trigonometry problem solving session could be solved in a few easy steps. Problem solving approach leads again to quick solutions in minimum number of steps...
With initial problem analysis and application of trigonometric expression simplifying and problem solving strategies, the problems chosen in this fifth NCERT trigonometry problem solving session could be solved in a few easy steps. Problem solving approach leads to quick solutions in minimum number of steps...
With initial problem analysis and application of trigonometric expression simplifying and problem solving strategies, the problems chosen in this fourth NCERT trigonometry problem solving session could be solved in a few easy steps. Problem solving approach leads to quick solutions in minimum number of steps...
