Important Mathematics formula pdf for competitive exam 2025. Maths Formulas and Tricks for SSC,IBPS,UPSC and RRB exam 2025. Mathematics Formula PDF for competitive exam Properties of set operations: For any three sets A B, and C, the following hold. (i) Read More …
Maths by Shakir sir Quantitative aptitude one of the important section in which candidates need to focus on tricks if you want to solve them quickly. Here i have lot of tricks to solve quantitative aptitude problems with in seconds. Read More …
Staff Selection Commission going to conduct CGL (Combined Graduate Level Exam) on 8th May and 22nd May 2016. If you really want to score good marks in this exam, you must follow a proper plan for that. As you all know, SSC Read More …
1. The average age of boys and girls in a class is 10.5 yr. that of the boys is 10.6 yr and that of the girls is 10.1 yr. If there are 60 boys in the class, how many girls Read More …
ALGEBRA: 1. Sum of first n natural numbers = n(n+1)/2 2. Sum of the squares of first n natural numbers = n(n+1)(2n+1)/6 3. Sum of the cubes of first n natural numbers = [n(n+1)/2]^2 4. Sum of first n natural Read More …
Arithmetic Progression(AP) Arithmetic progression(AP) or arithmetic sequence is a sequence of numbers in which each term after the first is obtained by adding a constant, d to the preceding term. The constant d is called common difference. An arithmetic progression Read More …
Prime Numbers A prime number is a positive integer that is divisible by itself and 1 only. Prime numbers will have exactly two integer factors. Examples: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, etc. Please note the following facts Read More …
1. Multiplication of any two numbers, lies between 11 and 19 13*19 = (13+9)*10 + (3*9) = 220 + 27 = 247 Means add first number and last digit of the second number take zero in the third place of Read More …
Question 1). Consider that A and B two person can finish a task in 4 days. Now if the person “A” can finish that task in total 12 days alone, you have to find out that in how many days person Read More …
Factorial Notation: Let n be a positive integer. Then, factorial n, denoted by n! is defined as: n! = n(n-1)(n-2)……..3.2.1. Examples: (i) 5! = (5x 4 x 3 x 2 x 1) = 120; (ii) 4! = (4x3x2x1) = 24 etc. We Read More …