Cross-Multiplication in Everyday Word Problems

A recipe requires 3/4 cup of sugar for every 2 cups of flour. If you want to use 5 cups of flour, how much sugar do you need?

• 1.875 cups of sugar

• 3 cups of sugar

• 1.5 cups of sugar

• 2.5 cups of sugar

Tags

CCSS.6.RP.A.3B

A car travels 120 miles in 2 hours. If it continues at the same speed, how far will it travel in 5 hours?

• 150 miles

• 180 miles

• 300 miles

• 240 miles

Tags

CCSS.6.RP.A.3B

A tank can be filled by a pipe in 3 hours and emptied by another pipe in 5 hours. If both pipes are open, how long will it take to fill the tank?

• 7.5 hours

• 5 hours

• 10 hours

• 2 hours

Tags

CCSS.HSA.CED.A.1

A store sells 3 shirts for $45. How much would 8 shirts cost at the same rate?

• $120

• $90

• $150

• $75

Tags

CCSS.6.RP.A.3B

A gardener can plant a tree in 1/2 hour. If he has 4 trees to plant, how long will it take him to plant all the trees?

• 30 minutes

• 2 hours

• 3 hours

• 1 hour

Tags

CCSS.5.NF.B.7A

CCSS.5.NF.B.7C

A recipe calls for 2/3 cup of oil for every 4 cups of flour. How much oil is needed for 10 cups of flour?

• 1 and 2/3 cups of oil

• 1 cup of oil

• 3/4 cup of oil

• 2 cups of oil

Tags

CCSS.6.RP.A.3B

A train travels 150 miles in 3 hours. If it maintains the same speed, how long will it take to travel 250 miles?

• 5 hours

• 6 hours

• 7 hours

• 4 hours

Tags

CCSS.6.RP.A.3B

A water tank fills at a rate of 1/4 tank per hour. How long will it take to fill the tank completely if it is currently 1/2 full?

• 1 hour

• 4 hours

• 2 hours

• 3 hours

Tags

CCSS.7.RP.A.1

A recipe requires 1/2 cup of milk for every 3/4 cup of flour. How much milk is needed for 2 cups of flour?

• 1 cup of milk

• 2 cups of milk

• 1 1/3 cups of milk

• 3/4 cup of milk

Tags

CCSS.7.RP.A.1

A cyclist travels 30 miles in 2 hours. If he continues at the same speed, how long will it take him to travel 75 miles?

• 3 hours

• 5 hours

• 6 hours

• 4 hours

Tags

CCSS.6.RP.A.3B