6 thoughts on “XAT Scan – 1

  1. It is similar to the 3rd question in this post, Girish: https://crackthecat.wordpress.com/2013/06/13/base-systems-examples/#comments

    Basically the funda is that in a base n, we have n digits from 0 to n-1…so if we have a system which incorporates all possible variants using n digits (as here) we can map it to base n. So if I ask you to make all possible numbers using only 0, 3 and 5 you could map it to base 3 and say the digits 0, 1 and 2 are equivalent to the 0, 3 and 5 of our given system.


  2. Because 5 is getting skipped, so the digit 6 on the meter is equivalent to a 5 in base 9 (see the table) Had the meter shown 4679 we would have taken it as 4568…


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