Question

In a school, the ratio of the number of large classrooms to small classrooms is 2:3. Ifthe number of small rooms is 30, then find the number of large rooms.

Answer 1

Answer:

15

Step-by-step explanation:

atio of large class rooms to small class rooms =3:4

Let the number of large class rooms be 3x

And the number of small class rooms be 4x

Given number of small rooms =20

⇒4x=20

⇒x=5

So the number of large class rooms

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=3x

=3×5

=15

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∴Number of large class rooms is 15