Total number of horizontal rectangles 1*2:
24∗3=72 multiplying the number in a horizontal row by the number of rows
Total number of vertical rectangles 2*1:
2∗25=50 multiplying the number in a vertical row by the number of rows
72∗50=3600 of all possible combinations of the arrangement
of a pair of rectangles 1*2 and 2*1
Rectangles 1 * 2 and 2 * 1 intersect in a square 2 * 2 with 2 * 2 = 4 options
The number of squares 2 * 2 on an area of 3 * 25 will be:
2∗24=48
Number of intersections of rectangles1*2 and 2*1:
48∗4=192
Intersection probability percentage:
3600192∗100≈5
Answer: 5% Intersection probability
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