Divisibility concepts | SureSolv

Divisibility concepts

10 Digit number puzzle of John Conway with solution

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Find the 10 unique digit number having the special property that the number formed by digits from left to right up to the place for each of the 10 places is divisible by the place number—is a beautiful puzzle presented by John Conway. It is a large and complex puzzle but can be solved using only the basic concepts taught in middle schools…

SSC CGL Tier II level Solution Set 29 Number system 1

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In this 29th solution set of 10 practice problem exercise for SSC CGL Tier II exam and 1st on topic Number System, a few of the problems should pose a bit of challenge to the student. Solutions are all concept and method based and mostly in mind. The problem solving approach should prove valuable to the students. Its paired question set can be used as a mini-mock test on number system, even for competitive tests other than SSC CGL...

How to solve difficult Algebra problems in a few simple steps 5

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In this fifth session on Algebra problem simplification taking up two complex algebra problems of SSC CGL level, we have explained the nature and practical use of elegant problem solving in a few steps in contrast to longer time-consuming conventional solutions. The problem solving strategies coupled with use of basic and rich algebraic concepts should not only help SSC CGL aspirants, but also give a push to enthusiastic school students in taking the path of innovative thinking...

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