MBA Exam

We are given a system of n linear equations in n variables, n > 1. Which of the following statements MUST BE FALSE?

1) The system of equations has an odd number of solutions
2) The system of equations has no solution
3) The system of equations has an infinite number of solutions
4) The system of equations has exactly n solutions

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MBA Other Question
find the probability that the year chosen at random has 53 mondays ?

1) 5/28
2) 3/28
3) 1/28
4) 2/28
 f(x) = srt((15-2sin(theta))^2 + (8-2cos(theta))^2)what is diff b/w max and min value of f(x)??solution plz??

1) 4
2) 2
3) 1
4) cbd