Other questions in this quiz

2. What is 45 written as a product of prime factors?

  • 5 x 3 x 3
  • 3 x 3 x 5
  • 1 x 45
  • 5 x 9

3. What product is represented by these prime factors: 2 x 3 x 3 x 5?

  • 90
  • 30
  • 18
  • 108

4. What is the lowest common multiple of 9 and 12?

  • 36
  • 54
  • 108
  • 3

5. A cleaner has to clean a room with an area of 60m^2. He starts cleaning at 9:00am. It takes him 48 minutes to clean 15m^2. He carries on this pace until he finishes. At what time can the cleaner finish cleaning the room?

  • 12:32pm
  • 12:32am
  • 12:12pm
  • 12:12am

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