In a school, the ratio of the number of large classrooms to small classrooms is 3:4. if the number of small rooms is 20, then find the number of large rooms.
Answers
Answered by
14
Step-by-step explanation:
Given, ratio of number of large classrooms to small classrooms = 3:4 Number of small classrooms = 20 Let the classrooms are multiple of x. According to the question, 4x = 20 => x=20/4 = 5 .
Answered by
13
Answer:
number of large rooms = 35
Step-by-step explanation:
3:4
Here 3 for large class room and 4 for small classroom and there total is 7
Large class room = 3/7
Small class room = 4/7
number of large rooms
= small room x 7 / 4
= 20x7 / 4
= 140 / 4
= 35
Extra Working
Total rooms = small classroom + large classroom
Total rooms = 20 + 35
Total rooms = 45
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