Answer:
23:28.
Step-by-step explanation:
Let m = number of male stars and f = the number of female stars.
Total weight of all the stars = 71.2m + 50.8f.
As the mean weight of all the stars = 60 we have
(71.2m + 50.8f) / ( m + f) = 60
71.2m + 50.8f = 60m + 60 f
11.2m = 9.2f
11.2m // f = 9.2
m / f = 9.2 / 11.2
m / f = 23/28.
The required ratio is 23:28.
