Question

Number of rectangles in the grid shown which art squares is:

• A. 160
• B. 162
• C. 170
• D. 185

Answer 1

Answer: (A)

160

Answer 2

⁷C₂.⁵C₂ – (6.4 + 5 × 3 + 4 × 2 + 3 × 1) = 160