Quantitative Aptitude

Basic terms useful to solve the problem on profit & Loss COST PRICE : The cost price of an article is the price at which the article is brought. SELLING PRICE : The selling price of an article is the price at which the article is sold. GAIN or PROFIT : If selling price of […]

An arithmetic average or mean of a set of numbers is a single number around which the set seems to cluster. The idea of average is not new to us. We are familiar with the following types of statements.  ‘My average on test is 96%, “Gavaskar averaged 57 runs in the series.” The average is

H.C.F (Highest Common Factor) = H.C.F of two or more than two numbers is the product of highest number of common factors L.C.M(Lowest Common multiple)= The L.C.M of two or mire than two numbers id the product of the highest powers of all the prime factors

We use ten symbols 0,1,2,3,4,5,6,7,8,9 called digits to represent any number. A group of digits, denoting a number is called a numeral.

A Function is defined to be rule that associates to may given number x a single number f(x) to be read as function of x. f(x) does not mean f time x. It means given x, the rule f results the number f(x). Symbolically it may be written in the form y=f(x).

BODMAS : Stand for B= BRACKET , O =OF , D= Division, M = Multiplication, A= Addition, S= Subtraction. It is a mathematical tool to solve arithmetic, expression which is having the given operations (BODMAS).

 A percentage  we know that percent means per hundred (100). The percent is denoted by sign, “%”, or the abbreviation “pc” is also used to represent percentage .So a fraction with its denominator 100 is equal to that percent as is the numerator.Thus 15/100 =15%

PERMUTATIONS: The ways of arranging or selecting smaller or equal number of persons or objects from a group of persons or collection of objects with due regard being paid to the order of arrangement or selection, are called permutations. COMBINATIONS: The number of ways in which smaller or equal number of things are arranged or