Exploring Prime Numbers and Perimeter

Which of the following numbers is a prime number?

• 15

• 23

• 28

• 35

What is the perimeter of a rectangle with a length of 10 metres and a width of 5 metres?

• 15 metres

• 20 metres

• 25 metres

• 30 metres

If a train travels at a speed of 60 miles per hour, how long will it take to travel 180 miles?

• 2 hours

• 3 hours

• 4 hours

• 5 hours

• 54

• 56

• 58

• 60

Which of the following is a multiple of 9?

• 34

• 45

• 52

• 67

If the perimeter of a square is 40 feet, what is the length of one side?

• 8 feet

• 10 feet

• 12 feet

• 14 feet

Which of the following numbers is not a prime number?

• 11

• 17

• 21

• 29

If a cyclist covers 15 miles in 1.5 hours, what is their average speed in miles per hour?

• 8 miles per hour

• 9 miles per hour

• 10 miles per hour

• 11 miles per hour