Answer:
840
Step-by-step explanation:
m = number of males
f = number of females
t = total entrants
t = m + f
m = f + 252
0.35(m + f) = f (×20)
7(m + f) = 20f
These are simultaneous which can be solved:
7(m + f) = 20f
7m + 7f = 20f
7m = 13f
Substitute:
7(f + 252) = 13f
7f + 1764 = 13f
6f = 1764
f = 294
m = 546
t = 294 + 546
t = 840
