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The straight lines A 1 and A 2 pass through the origin and trisect the line segment of the line L : 9x + 5y = 45 between the axes. If m 1 and m 2 are the slopes of the lines A 1 and A 2 , then the point of intersection of the line y = (m 1 + m 2 )x with L lies on

1. y – 2x = 5
2. 6x + y = 10
3. y – x = 5
4. 6x – y = 15

Correct answer: y – x = 5

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