Bond Series#2 - Analysis of SSC 2017 Mains ( 17-02-2018) with concepts Number System
I have started a new series of concepts and their applications in SSC and CAT exams. This series is named as -Bond series. In these sessions, we will discuss the questions asked in SSC CGL mains 2017 and analyse the concept with questions asked inprevious CAT and SSC exams.
For given n different digits a,b,c........n; the sum of the digit at the unit place of all different numbers formed is = (n-1)!(a+b+c........n)= (n-1)! (sum of the digits)
Find the number of three digit numbers having:
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