Oxford PAT 2016, Question 16

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4 thoughts on “Oxford PAT 2016, Question 16

    1. No worries, it’s a pleasure to answer your questions.

      Yes, it would be absolutely fine to express the position in terms of e.g. the value Q1/Q2. In fact that’s just what k represents (well, 1/k actually, but …).

    1. That’s a good question, that isn’t easy to answer. Basically I did this because it meant that the Q1 and Q2 values could be cancelled out of the equation in line 2, to give us an equation relating r to the ratio k (which I have defined to be Q1/Q2). Just makes the algebra a bit simpler.

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