Finding Least Common Multiples with Real-Life Scenarios

Sarah has 12 apples and 18 oranges. What is the least common multiple of the number of apples and oranges she has?

• 24

• 42

• 36

• 30

Two buses leave the station at the same time. One bus arrives every 15 minutes, and the other arrives every 20 minutes. When will they next arrive at the same time?

• 30 minutes

• 60 minutes

• 75 minutes

• 45 minutes

A gardener is planting flowers in rows. He can plant 8 flowers in one row and 12 flowers in another. What is the least common multiple of the number of flowers in each row?

• 16

• 24

• 20

• 32

Tom and Jerry are playing a game. Tom takes 10 minutes to complete a level, while Jerry takes 15 minutes. How long will it take for them to finish a level together?

• 6 minutes

• 5 minutes

• 12 minutes

• 10 minutes

A factory produces 24 toys every hour and 36 toys every hour in another section. What is the least common multiple of the toys produced in both sections?

• 60

• 84

• 72

• 48

Emily is making gift bags. She can fill 9 bags with candies and 15 bags with toys. What is the least common multiple of the number of bags she can fill?

• 60

• 30

• 45

• 75

A music teacher has 8 students who play the piano and 12 students who play the guitar. What is the least common multiple of the number of students in each group?

• 20

• 24

• 30

• 36

Two friends are skipping rope. One can complete a round in 6 seconds, and the other in 9 seconds. How long will it take for them to complete the same number of rounds together?

• 24 seconds

• 12 seconds

• 18 seconds

• 30 seconds

A baker makes 18 cupcakes and 24 cookies. What is the least common multiple of the number of cupcakes and cookies he makes?

• 36

• 48

• 60

• 72

In a school, 10 students are in the basketball team and 15 students are in the soccer team. What is the least common multiple of the number of students in both teams?

• 25

• 35

• 30

• 40