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+3 votes

X, Y and Z are closed intervals of unit length on the real line. The overlap of X and Y is half a unit. The overlap of Y and Z is also half a unit. Let the overlap of X and Z be k units. Which of the following is true?

  1. k must be 1
  2. k must be 0
  3. k can take any value between 0 and 1
  4. None of the above
asked in Numerical Methods by Veteran (59.4k points)
edited by | 553 views

2 Answers

+3 votes
Best answer
-------------    z
       ----------------- y
------------- x
in above case k is 1..
                 ------------------ z
       ----------------- y
------------- x
now k is 0..

value of k would be either 0 or 1..
answered by Veteran (54.7k points)
selected by
Agreed with your ans ( either 0 or 1) but how did you represent x, y, z on the number line .. It seems k=0 in then earlier case and k=1 in the later case.
+1 vote
D) none because k could be 0 or 1
answered by Junior (901 points)

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