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Mathematical reasoning

Basic and rich concepts on Moving Escalator to solve difficult Speed Time and distance problems in a few steps

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Usually time and distance problems involve objects moving on fixed stationary ground base. When the base starts moving, an additional level of complexity is introduced. These are problem areas favorable for applying very basic relative speed concepts and arrive at solution in a few steps...

Reverse cheque puzzle solution

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Twice the amount written on cheque remained after spending 20 paise from amount received from bank. Cashier mistakenly interchanged paise with rupees. What were the cheque figures? Recommended time limit is 20 minutes. But do continue even if you exceed the limit, the puzzle is not that difficult...

Basic and Rich Percentage Concepts for solving difficult SSC CGL problems

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In business world, academics, Science and technology, or daily life, use of the concept of Percentage is ubiquitous and all-pervading. Because of its apparent simplicity though, this concept is taken for granted with not much emphasis on its elaboration and explanation....

SSC CGL level Solution Set 67 on Time-Work Work-Wages Pipes-Cisterns 6

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This is the 67th solution set of 10 practice problem exercise for SSC CGL exam and 6th on related topics Time-Work, Work-Wages, and Pipes-Cisterns. Students must complete the corresponding question set in prescribed time first and then only refer to this solution set for gaining maximum benefits from this resource...

SSC CGL level Solution Set 66 on Time-Work Work-Wages Pipes-Cisterns 5

thumb ssc cgl level solution set 66 time-work work-wages pipes-cisterns 5

This is the 66th solution set of 10 practice problem exercise for SSC CGL exam and 5th on related topics Time-Work, Work-Wages, and Pipes-Cisterns. Students must complete the corresponding question set in prescribed time first and then only refer to this solution set for gaining maximum benefits from this resource...

SSC CGL level Solution Set 59, Fractions square roots and surds 3

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This is the 59th solution set of 10 practice problem exercise for SSC CGL exam and 3nd on topic fractions, square roots 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 difficult SSC CGL algebra problems in a few steps 14

thumb_How to solve difficult SSC CGL algebra problems in a few steps 14

Usually we solve difficult Algebra problems in a few steps using basic and rich Algebra concepts together with powerful general problem solving techniques visualizing the solution in the beginning itself. But this problem required more of deductive reasoning, mathematical reasoning, and exploratory application of core algebraic concepts such as symmetry in algebraic expressions, variable number reduction by component expression substitution and secondary term value sharing...

Reverse cheque puzzle

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Bhabababu received double the money he wrote in his cheque... His alert mind quickly got to the heart of the mystery. It was a simple but grave mistake made by the cashier...but again, Bhabababu knew what he wrote in his cheque, you don't. Nevertheless, if you devote a bit of interested time, you would surely know. It is not difficult on the surface...

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