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Digital Root Unity (Posted on 2022-08-03) Difficulty: 3 of 5
Consider a positive integer X such that
  1. X and Xn together has 21 digits, and:
  2. The digital root of (X+Xn) is 1.
Determine the value of n, given that it is a positive integer less than 10.

See The Solution Submitted by K Sengupta    
Rating: 5.0000 (1 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
No SubjectK Sengupta2022-09-13 12:50:25
No Subjectnguyentra34932022-09-13 12:03:49
SolutionsolutionCharlie2022-08-03 08:06:09
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