Selina solutions

Selina solutions

Grade 6

Ratio | Exercise 11(B)

Question 12

Q12) The student-teacher ratio in a school is 45 : 2. If there are 4050 students in the school, how many teachers must be there?

Solution:

Total number of students = 4050

Let total number of teachers = x

The student-teacher ratio in a school = 45 : 2

Required ratio = \frac{Total\ number\ ofstudents}{Total\ number\ ofteacher}

>\frac{45}{2}=\frac{4050}{x}>x=\frac{4050\times2}{45}=180\ teachers

Number of teachers = 180

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subject-cta

Question 12

Q12) The student-teacher ratio in a school is 45 : 2. If there are 4050 students in the school, how many teachers must be there?

Solution:

Total number of students = 4050

Let total number of teachers = x

The student-teacher ratio in a school = 45 : 2

Required ratio = \frac{Total\ number\ ofstudents}{Total\ number\ ofteacher}

>\frac{45}{2}=\frac{4050}{x}>x=\frac{4050\times2}{45}=180\ teachers

Number of teachers = 180

Still have questions? Our expert teachers can help you out

Book a free class now

Want to top your mathematics exam ?

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subject-cta
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