Let M be the male students
Let F be the female students
Given .72M and .80F applied
To find M/M+F (or) M/F (part to whole ratio or part to part ratio)
Stmt I
m+f = 840
still dont know m
INSUFF
Stmt II
.72M + .80F = .75(M+F)
We can get M/F from here which is what we need.
SUFF
B)
p.s If u were to calculate (not needed just FYI)
.72M+.80F = .75M+.75F
.5F = .3M
5F=3M
M/F = 5/3 (5/8 the men 3/8ths women)
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