Real-Life Equations: Interpret & Check Your Solutions

A farmer has a total of 120 apples. He sells some apples and has 45 left. How many apples did he sell?

• 60

• 30

• 90

• 75

Maria has twice as many marbles as John. If John has x marbles and together they have 54 marbles, how many marbles does Maria have?

• 27

• 45

• 18

• 36

A book costs $15. If you buy x books, and your total cost is $75, how many books did you buy?

• 10

• 7

• 3

• 5

Tom is 5 years older than his sister. If his sister is x years old and together they are 25 years old, how old is Tom?

• 10

• 12

• 20

• 15

A car travels 60 miles per hour. If it travels for x hours, it covers a distance of 240 miles. How long did the car travel?

• 2 hours

• 3 hours

• 4 hours

• 5 hours

A pizza is cut into 8 equal slices. If you eat x slices and there are 3 slices left, how many slices did you eat?

• 6

• 5

• 4

• 7

A school has 300 students. If 75% of them are in the band, how many students are in the band?

• 225

• 75

• 300

• 150

Lily has $50. She spends x dollars on a book and has $20 left. How much did she spend on the book?

• 15

• 40

• 30

• 25

A box contains x toys. If you add 10 more toys, the total becomes 50. How many toys were in the box originally?

• 30

• 20

• 50

• 40

A swimming pool is filled with water at a rate of 5 gallons per minute. If it takes x minutes to fill the pool and the total volume is 300 gallons, how long does it take to fill the pool?

• 60 minutes

• 30 minutes

• 90 minutes

• 45 minutes