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 …
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 …