In a museum, the ratio of adults to children is 13 to 5. If there are 288 people in the museum, how many children are there?

Question

5199 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2016-10-27T03:40:33

number of children #=80#

So, we have a ratio of 13 adults : 5 children

This means that for every #18 (13+5)# people in total we have 5 children.

This can be displayed Algebraically as,

#288/18=x/5# where x is the number of children

#x=80#

Another way of doing this question is to find what one unit is,

#"number of adults"+"number of children"=288#

#13x+5x=288#

#18x=288#

#x=16#

and then multiply by ratio.

number of children = #5x#

#=5*16#

#=80#