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A student draws 35 lines in XY plane, none of which are vertical and 15 of which have a positive slope. Of those with positive slope, 1/3 also have positive Y-intercept. If 23 line have a Y-intercept less than or equal to zero, how many lines contain no point in Quadrant I?
A. 0
B. 7
C. 13
D. 20
E. 35
The OA is C
Source: Manhattan Prep
A. 0
B. 7
C. 13
D. 20
E. 35
The OA is C
Source: Manhattan Prep
