Answer:
12 post-id notes are needed to cover the entire whiteboard.
Explanation:
Sides of a whiteboard are 8 inches by 6 inches.
Area of a whiteboard = length × breadth= 8 × 6 = 48 square inches.
Sides of Post-it notes are 2 inches by 2 inches.
Area of a Post-it note = length × breadth= 2 × 2 = 4 square inches.
Therefore,
Number of Post-it notes needed to cover the entire whiteboard
= Area of a whiteboard ÷ Area of a Post-it note
= 48 ÷ 4
= 12 post-id notes