Institute of Banking and Personnel Selection (IBPS) will soon organize the Common Written Examination (CWE) for appointing the eligible candidates to the post of Probationary Officers in private sector banks. IBPS PO Exam 2013 will be conducted on 19 October 2013, 20 October 2013, 26 October 2013, and 27 October 2013. The common written examination contains 5 different subdivisions that are Reasoning, General Awareness, English Language, Quantitative Aptitude, and Computer Knowledge.
Quantitative Aptitude portion of the common written examination contains 40 questions on different topics such as Percentage Partnership and Share, Time & Work, Profit, Loss & Discount, Data Interpretation and more. For helping aspirants, Banking Experts of the Jagranjosh.com strive hard to provide best study material and practice paper.
This section contains study material on the topic, Simplification and Approximation. It is a very important part of quantitative aptitude sections.
Simplification and Approximation
Some Important Concepts
‘BODMAS’ Rule: This ‘BODMAS’ Rule shows the correct sequence of all the operations that are to be executed to find out the value of a given expression. In this rule ‘B’ Stands for ‘Bracket’, ‘O’ stands for ‘of’, ‘D’ for ‘Division’, ‘M’ for ‘Multiplication’, ‘A’ for ‘Addition’ and ‘S’ for ‘Subtraction’.
Therefore, the correct order to simplify an expression is:
(a) ( )
Modulus of a Real Number: If the real number is ‘r’, then