Variable elimination technique

SSC CGL Tier II level Solution Set 3, Algebra 3

thumb_SSC CGL Tier 2 solution set 3 algebra3

This is the 3rd solution set of 10 practice problem exercise for SSC CGL Tier II exam and also the 3rd 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...

How to solve difficult SSC CGL Profit and loss problems in a few steps 3

thumb_How to solve difficult SSC CGL profit loss problems in a few steps 3

Usually profit and loss problems do not come difficult, variations are few and with a bit of grounding on concepts you can solve any of this category of problems easily. That's why this one surprised us. At the first glance there seemed to be too many variables and the problem unsolvable. But when we looked deeper we discovered the clues to elegant solution one by one...

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