Question

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

Answer 1

Answer:

answer is 180

Step-by-step explanation:

stuedent teacher ratio =45:2

let the no.of students 45x

45x=4050 ( no.of st.given )

x =4050/45

x = 90

let the no of teachers to be 2x

so the no of students = 2x

2x = 2×90=180

so no.of teachers = 180

Answer 2

Answer:

$\huge{\underline{\underline{\sf{꧁Solution꧂}}}}$

Total number of students = 4050

Let total number of teachers = x

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

∴ Required ratio = Total number of students/Total number of teacher

⇒ 45/2 = 4050/x ⇒ x = (4050 × 2)/45 = 180 teachers

∴ Number of teachers = 180