Basic concepts on maths, mostly up to class 10. This is the most important math knowledge used in almost all competitive exams.
Base equalization technique produces quick solutions in indices problems. But that is not the only area of application of this more general concept. For solving problems on fractions also, the base equalization technique is indispensable...
Even if you know that the Base equalization technique may solve your problem with great ease, first you have to decide on that and second you have also to decide to which same value the bases are to be equalized...
Permutation and combination deal with choice and arrangement of a set of objects out of a second set of objects. Permutation deals with such questions as, how many ways can the three letters a, b and c be arranged? In each such permutation or arrangement, ordering is important. On the other hand, Combination deals with such questions as, how many ways can you choose a captain and vice-captain out of a cricket team of 11 players? In a combination, ordering of the elements chosen is not important...
Break up a number into its factors, just as you break up a complex problem into its component simpler sub-problems. Factorization is one of the most basic operations and is used extensively in other more important problem areas of HCF and LCM...
Numbers and arithmetic operations. Number system concepts and methods for solving number problems in competitive exams explained on test example problems. Exercise problems with answers for practice.
