Answer:
(Cells in metaphase/total number of cells) x 24 hours = hours in metaphase
Step-by-step explanation:
You need to find the proportion of the cells in metaphase to the total number of cells, and multiplying by 24 hours will then give you the number of hours spent in metaphase.
For a more concrete example:
11 metaphase/200 total = .055
.055 x 24 hours = 1.32 hours in metaphase