# I need help with this math question?

A math class has a total of 20 students. When the 2 new male students enter, the number of female students exceed the number of male students by 2 students. Find the number of female students in that class.

### 2 Answers

- KrishnamurthyLv 73 months ago
A math class has a total of 20 students.

When the 2 new male students enter,

the number of female students exceeds

the number of male students by 2 students.

Find the number of female students in that class.

f + m = 20

f + (m + 2) = 22

f - m = 2

Solution:

f = 11, m = 9

The number of female students in that class is 11.

- Wayne DeguManLv 73 months ago
When the two new student arrive we have,

m + f = 22...(1)

f = m + 2...(2)

so, m + (m + 2) = 22

=> 2m = 20

i.e. m = 10 => f = 12

Hence, 10 male and 12 female students

Note, before the two extra males were added we had 8 male and 12 females => 20 students

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