How to solve in a few steps, Profit and loss problem 1
A man sells two watches at same price profit and loss problem: Know how to solve profit and loss problem in a few steps by problem solving techniques.
A man sells two watches at same price profit and loss problem: Know how to solve profit and loss problem in a few steps by problem solving techniques.
In a problem with multiple parameters, identify the base to be equalized and its target value and equalize the bases. This is base equalizing technique.
Base equalization technique produces quick solutions in indices problems. For fraction problems also, base equalization technique is indispensable.
Selected examples explain how to use base equalization technique in solving indices problems elegantly. It also is indispensable for fraction problems.
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.