Question

Statement-1: Number of rectangles on chessboard (which may be overlapped also) is ${}^8{C}_2\cdot {}^8{C}_2$.
Statement-2: To form a rectangle we have to select any two of the horizontal lines and any two from the vertical lines.

• A. Statement-1 is true, statement-2 is true and statement-2 is correct explanation for statement-1.
• B. Statement-1 is true, statement-2 is true and statement-2 is NOT the correct explanation for statement-1.
• C. Statement-1 is true, statement-2 is false.
• D. Statement-1 is false, statement-2 is true.

Answer 1

Answer: (D)

it should be ${}^9{C}_2\cdot {}^9{C}_2$