Quantitative Aptitude Practice questions on Permutation and Probability: This practice set has 20 questions with their answers & Explanatory answer covering topics from the areas of Quantitative ...

Preparation for any exam requires an overall understanding and a rigorous practice of all the concepts to be tested in that exam. This can be achieved by a thorough learning of each topic given in the ...

A new proof from the Australian science fiction writer Greg Egan and a 2011 proof anonymously posted online are now being hailed as significant advances on a puzzle mathematicians have been studying ...