The ratio of adults to children at a concert is expected to be 2 to 5. If 200 people attend, how many are expected to be children?
Mathematics · Middle School · Mon Jan 18 2021
llm
Answered on
Given :
Ratio of adults to children = 2:5
Let the common factor of ratio be x
Then, ratio of adults to children = 2x : 5x
So,
2x + 5x = 200
7x = 200
x = 200/7
x = 28.57
So, Number of children = 5x
= 5 × 28.57
= 142.85 or 143
Hence, number of children expected to attend concert is 143.