Question

the ratio of the number of male and female teachers in a school is 2:5.if there are 35 teachers.find the number of female teachers???

Answer 1

fe.male teachers part is 5/7
total teachers are 35
no. of female teachers is 35*5/7.=5*5=25

Answer 2

The number of female teachers is 25

Given:

The ratio of the number of male and female teachers in a school = 2:5

Total number of teachers = 35

To find:

The number of female teachers

Solution:

Given total number of teachers = 35

Let 2x and 5x be the of number of male and female teachers respectively

[ ∵ they are in 2:5 ratio ]

Then total number of teachers = 2x+5x

From given data 2x+5x = 35

⇒ 7x = 35

⇒ x = 5

Therefore, Number of female teachers 5x = 5(5) = 25

The number of female teachers = 25

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