B) In a school, there are a total of 6300 classrooms. The ratio of the

1.	B) In a school, there are a total of 6300 classrooms. The ratio of the number of largeclassrooms to small classrooms is 1 : 5. Find the number of large classrooms andsmall classrooms in the school.
Answer» ANSWER: LET the number of large classrooms = 3x Number of SMALL classrooms = 4x Given that number of small classrooms = 20 ⟹4x=20⟹x= 4 20 = 4÷4 20÷4 =5 ∴x=5 Number of large classrooms = 3×5=15 Explanation:

B) In a school, there are a total of 6300 classrooms. The ratio of the number of largeclassrooms to small classrooms is 1 : 5. Find the number of large classrooms andsmall classrooms in the school.

Answer»

LET the number of large classrooms = 3x

Number of SMALL classrooms = 4x

Given that number of small classrooms = 20

⟹4x=20⟹x=

4÷4

20÷4

∴x=5

Number of large classrooms = 3×5=15

Explanation: