Solving Ratios Word Problems

A group of students went on a field trip. The ratio of boys to girls was 2:3. If there were a total of 30 students, how many were girls?

Mrs. DeWater's babies are on a high calorie diet. To make their formula she has to mix a ratio of 3 scoops of powder to 5 ounces of water. If she wants to make a total of 32 ounces of formula, then how many scoops of powder will it take?

Coach Hilliard loves to drink coffee so much she drank 45 cups of coffee last week. If the ratio of pumpkin spice coffee to vanilla coffee is 3:2, then how many pumpkin spice cups of coffee did she drink?

Mrs. Cloud read 56 books over the summer. The ratio of fiction to non-fiction is 2:5. How many non-fiction books did Mrs. Cloud read over the summer?

Two quantities are in the ratio 7:3. If the sum of the quantities is 100, what is the larger quantity?

• 70

• 75

• 30

• 25

While preparing for a triathlon, Janecia swims 8 minutes for every 20 minutes she bikes.  If she swims 72 minutes, how long does she bike for?

• 180 minutes

• 144 minutes

• 92 minutes

• 80 minutes

If a car travels 60 miles in 1.5 hours, what is the ratio of miles to hours?

• 40:1

• 60:1.5

• 40:3

• 20:0.5

In Houston, Texas 6 birds ate 30 grams of worms in one night. At this rate, how many grams of worms could 98 birds eat in one night?

• 490

• 19.6

• 134

• 580

If the ratio of cats to dogs in a pet store is 3:4, and there are 12 cats, how many dogs are there?

• 16

• 15

• 14

• 13

A school's student to teacher ratio is 20:1. If there are 400 students, how many teachers are there?

• 20

• 25

• 15

• 10