Word problem

Question

In a museum, the ratio of adults to children is 12 to 9. If there are 252 people in the museum, how many children are there?

Answer 1

12/9=a/c

 

a+c=252, then a=252-c, therefore the proportion becomes

12/9=(252-c)/c.

Work this out by solving for c, compare your answer to Lauren H.

Answer 2

12 + 9 = 21

252/21 = 12

12 x 12 = 144 a

12 x 9 = 108 c