Violet is watching the sand in a hourglass drain from the upper portion to the lower portion of the glass. She wonders how fast the sand is draining.

Question

Which unit rates would be reasonable for Violet to use to describe how fast the sand is draining from the upper portion to the lower portion of the glass?

Select each correct answer.

Answer 1

- Cubic centimeters per second
- Milliliters per minute
- Seconds per milliliter