QUESTION.
ANSWER.

First of all, count the number of cells in interphase, prophase, metaphase, anaphase, and telophase.
I have counted the numbers and written along the diagram.
TOTAL CELLS = (55+1+2+1) = 59
Now use the given formula:
DURATION OF INTERPHASE = (55/ 59)*24 =22.37 hours
DURATION OF PROPHASE = (1/ 59)*24 = 0.41 hours or 24.6 minutes.
DURATION OF METAPHASE = (2/ 59)*24 = 0.81 hours or 48.6 minutes.
DURATION OF ANAPHASE = (1/ 59)*24 =0.41 hours or 24.6 minutes.
DURATION OF TELOPHASE = NOT IDENTIFIABLE. This should be in seconds.