Number System and Arithmetic are the two most basic, but extremely important, topics of Quantitative Aptitude. They make the foundation of one’s QA skills and go a long way in making one do well in ...

The p-adics form an infinite collection of number systems based on prime numbers. They’re at the heart of modern number theory. The rational numbers are the most familiar numbers: 1, -5, ½, and every ...

In the present operation system, the length of numbers of the significand of the numeral register group and the number of operation Words of micro instructions can be switched on the hardware by ...

Most of us have little trouble working out how many millilitres are in 2.4 litres of water (it’s 2,400). But the same can’t be said when we’re asked how many minutes are in 2.4 hours (it’s 144).

The twin primes conjecture is one of the most important and difficult questions in mathematics. Two mathematicians have solved a parallel version of the problem for small number systems. On September ...