Question 38
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The figure is a rectangle divided into equal squares, 4 across and 3 down.
How many rectangles of all sizes (squares included) are in the figure?
- A 12
- B 20
- C 72
- D 60 Correct
Correct Answer: Option D
5 vertical lines, 4 horizontal lines
5C2 × 4C2 = 10 × 6 = 60
Trap: 12 counts only the small squares.
Answer: 60
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