Question

last summer, at camp okey-fun-okey, the ratio of the number of boy campers to girl campers was 8:7. If there were a total of 195 campers, how may boy campers were there? how many girl campers are there

Answer 1

The ration of boy campers to total campers is 8:15, and the ratio of girl campers to total campers is 7:15.  Using this information, we can answer this question by setting up proportions.

For boys:

$\frac{8}{15} =\frac{x}{195}$

*Cross multiply*

15x=1560

*Divide both sides by 15*

x=104

There are 169 boy campers.

For girls:

$\frac{7}{15} =\frac{x}{195}$

*Cross multiply*

15x=1365

91=x

There are 91 girl campers.

Hope this helps!!

Answer 2

Answer:

104 boys and 91 girls

Step-by-step explanation:

We need to determine fractions (fraction of campers who were boys, fraction of campers who were girls).  To do this, add 8 and 7, obtaining 15.  Then 8/15 of the campuers were boys and 7/15 were girls.

Thus, there were (8/15)(195 boy campers) and (7/15)(195 girl campers), or 104 boys and 91 girls.