Prizes, Multiples, and Percentages

This video tutorial covers the concept of common multiples and least common multiples. It begins with an introduction to common multiples, followed by a problem-solving activity involving a florist ordering flowers. The lesson then explains the least common multiple with examples, and applies these concepts to a prize distribution scenario. The video concludes with a summary and homework problems to reinforce learning.

What is a common multiple of 4 and 6?

• 14

• 12

• 8

• 10

If a florist orders roses in bunches of 12 and lilies in bunches of 8, what is the smallest number of each she can order to have the same total?

• 60

• 48

• 36

• 24

What is the least common multiple of 6 and 8?

• 24

• 12

• 30

• 18

What is the least common multiple of 7 and 9?

• 63

• 56

• 49

• 72

In the bakery's prize distribution, which customer number will receive both a bagel and a blueberry muffin?

• 55

• 36

• 45

• 50

How many total prizes will be given away at the bakery's grand opening?

• 19

• 17

• 21

• 15

If a green light blinks every 4 seconds and a yellow light every 5 seconds, when will they blink together for the first time?

• 15 seconds

• 10 seconds

• 25 seconds

• 20 seconds

What is the least common multiple of 10 and 15?

• 30

• 20

• 40

• 50

If cups are sold in packages of 8 and napkins in packages of 12, what is the fewest number of packages needed to have the same total?

• 2 packages of cups and 3 of napkins

• 3 packages of each

• 3 packages of cups and 2 of napkins

• 2 packages of each

If a school has raised 20% of its $2,500 goal, how much has it raised?

• $700

• $500

• $600

• $400