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by danjuma » Sun Oct 10, 2010 9:21 am
In a certain senior class, 72% of the male and 80% of the female students have applied to college. What fraction of the students in the class are male.

a. There are 840 students in the class

b. 75% of the studets in the classhave applied to college
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Source: — Data Sufficiency |
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by selango » Sun Oct 10, 2010 9:28 am
0.72M and 0.8F have applied to college.

M/M+F=?

stmt1,

M+F=840

We dont know number of Male and female students.

Insuff

stmt2,

75(M+F)/100=72M/100+80F/100

75M+75F=72M+80F

3M=5F

M/F=5/3

M/M+F=5/8

Suff

Pick B
--Anand--
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