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Let A(a, b), B(3, 4) and C(–6, –8) respectively denote the centroid, circumcentre and orthocenter of a triangle. Then, the distance of the point P(2a + 3, 7b + 5) from the line 2x + 3y – 4 = 0 measured parallel to the line x – 2y – 1 = 0 is

1. 7 5 17
2. 7 5 15
3. 17 5
4. 6 5 17

Correct answer: 7 5 17

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