Question 17
How many rectangles in the diagram have a sum of enclosed numbers that is a multiple of 5?
Interpretation: Count rectangles whose sides follow the grid lines and which contain whole cells.
Answer format: enter the integer answer without units. Leading zeros are optional; the original paper uses four-digit boxes.
Interpretation: Count rectangles whose sides follow the grid lines and which contain whole cells.
Answer format: enter the integer answer without units. Leading zeros are optional; the original paper uses four-digit boxes.