Grade 5 Math: Ratios, Proportions, and Basic Algebra

A recipe calls for 2 cups of flour for every 3 cups of sugar. If you want to make a batch with 6 cups of sugar, how many cups of flour do you need?

• 3 cups of flour

• 5 cups of flour

• 4 cups of flour

• 2 cups of flour

In a class, the ratio of boys to girls is 4:5. If there are 20 boys, how many girls are there in the class?

• 20

• 25

• 30

• 15

A car travels 150 miles on 5 gallons of gas. How many miles can it travel on 8 gallons of gas?

• 240 miles

• 300 miles

• 200 miles

• 180 miles

Sarah has 12 apples, and she wants to share them equally among her 3 friends. How many apples will each friend get?

• 4

• 3

• 6

• 5

A store sells pencils at a ratio of 3 for $1. How much would it cost to buy 15 pencils?

• $5

• $7

• $3

• $10

If a book costs $15 and you have a coupon for 20% off, how much will you pay for the book after applying the coupon?

• $18

• $12

• $10

• $15

A gardener plants flowers in a ratio of 2 roses for every 3 tulips. If he plants 10 tulips, how many roses does he plant?

• 6 roses

• 10 roses

• 8 roses

• 4 roses

Tom has 30 marbles, and he gives away some to his friend. If he has 12 marbles left, how many marbles did he give away?

• 18

• 25

• 15

• 10

A recipe requires 4 cups of water for every 2 cups of rice. If you want to cook 6 cups of rice, how much water do you need?

• 8 cups of water

• 12 cups of water

• 14 cups of water

• 10 cups of water

In a school, the ratio of teachers to students is 1:15. If there are 120 students, how many teachers are there?

• 12

• 10

• 5

• 8