CAT Quant Practice Problems

Question: Which one of the following conditions must p, q and r satisfy so that the following system of linear simultaneous equations has at least one solution, such that p + q+ r ≠ 0?

x+2y – 3z = p

2x +6y –11z = q

x –2y +7z = r


  1. 5p –2q – r = 0
  2. 5p + 2q + r = 0
  3. 5p + 2q – r = 0
  4. 5p – 2q + r = 0

Correct Option:1

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CAT Quant Practice Problems
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