At a restaurant the ratio of kids meals sold to adult meals

At a restaurant the ratio of kids meals sold to adult meals sold was 5 : 4. If there were 20 kids meals sold, what is the combined amount of kids and adults meals sold? A student bought 34 pencils for school. If he sharpened 16 of the pencils before school, what is his ratio of unsharpened pencils to sharpened pencils? A buffet offers ranch or caesar dressing. The ratio of ranch dressing used to caesar dressing used is 8 : 3. If the buffet uses 72 cases of ranch dressing, how many cases of caesar do they use? A student finished 72 of her homework problems in class. If the ratio of problems she finished to problems she still had left was 8 : 1, how many homework problems did she have total? At a carnival Cody bought 15 tickets. If he used 6 tickets trying to win the ring toss game what is the ratio of tickets he has to tickets he\'s used?

Solution

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5)

Let the number of adults meals sold be x

Ratio of Children/Ratio of Adult Meal = 5/4 (Given)

Number of Children Meal = 20

Substituting the values we get

20/x = 5/4

or x = 16

Combined amount of meals = Kids meal + adult meals = 20 + 16 = 36

6)

Number of Pencils = 34

Sharpened Pencils = 16

Unsharpened Pencils = Number of Pencils - Sharpened Pencils

=> 34 - 16

=> 18 pencils

Ratio of Unsharpened Pencils/ Ratio of Sharpened Pencils

=> 18/16 = 9/8

7)

Let the number of ranch dressing be x

Ratio of Ranch Dressing /Ratio of Caesar Dressing = 8/3 (Given)

Number of ranch dressing = 72

Substituting the values we get

72/x = 8/3

or x = 27

Hence number of caesar dressing is equal to 27