Directions: Using the digits 1 to 9 at most one time each, find the dimensions of three rectangular prisms so that their volumes are as close as possible. Note: diagram may not be drawn to scale.
Can you find 3 volumes that are within the range of 50 and 90?
Can you find 3 volumes that are within the range of 60 and 80?
The difference between all 3 volumes is less than 10.
Source: Daniel Walker