16 Questions
What is the Highest Common Factor (HCF) of Helen's two numbers?
5
At what time will a train to Cardiff and a train to London next leave Bristol at the same time?
11:45 am
When will a train to Portadown and a train to Portrush next leave the train station at the same time?
12:36 pm
What is the Lowest Common Multiple (LCM) of the two numbers with an HCF of 6 and an LCM of 60?
60
After how many seconds will the red, yellow, and green lights next all flash at the same time?
48 seconds
What is the Lowest Common Multiple (LCM) of Helen's two numbers?
60
How often do trains to Cardiff leave Bristol?
every 15 minutes
How often do trains to Portadown leave a train station?
every 28 minutes
What essential items should you have before starting an exam?
Pencil, pen, ruler, protractor, pair of compasses, and eraser
What is the purpose of tracing paper in an exam?
If needed
How many questions should you attempt in an exam?
All of them
What is the common factor of the two numbers that satisfy the condition in question 1(a)?
10
How often do the red and yellow lights flash together?
Every 12 seconds
What is the Least Common Multiple (LCM) of 9 and 12?
36
How many minutes will it take for the blue and pink lights to flash together again?
108 minutes
What is the smallest number of packets that Mary can buy?
6 packets
Study Notes
Exam Guidelines
- Ensure you have necessary stationery: pencil, pen, ruler, protractor, pair of compasses, and eraser.
- Tracing paper can be used if needed.
- Read each question carefully before answering.
- Don't spend too long on one question.
- Attempt every question.
- Check your answers for accuracy.
- Always show your workings.
Common Factors and Multiples
- Choose two numbers with a common factor of 10.
- Select two numbers with a common multiple of 24.
- Identify two numbers with a common factor of 7.
- Determine two numbers with a common multiple of 200.
Flashing Lights and Barking Dogs
- Two lights flash at the same time every 6 and 4 seconds.
- Tilly and Billy bark at the same time every 9 and 12 seconds.
- A blue light flashes every 8 minutes, and a pink light flashes every 54 minutes.
- Both lights flash together at 2 pm.
Charity Hot Dog Sale
- Mary buys the same number of bread rolls and hot dogs.
- There are 18 bread rolls and 15 hot dogs in each packet.
- Determine the smallest number of packets Mary can buy.
Highest Common Factor (HCF) and Lowest Common Multiple (LCM)
- HCF of two numbers is 5, and LCM is a multiple of 12.
- Two possible numbers Helen could be thinking of.
- HCF of two numbers is 6, and LCM is 60.
- Determine the two numbers.
Trains Leaving Stations
- Trains leave Bristol to Cardiff every 15 minutes and to London every 21 minutes.
- Trains to Portadown leave every 28 minutes, and trains to Portrush leave every 16 minutes.
- Determine the time when trains to Cardiff and London, or Portadown and Portrush, leave at the same time.
Flashing Lights and Barking Dogs (Again)
- A red light flashes every 3 seconds, a yellow light every 8 seconds, and a green light every 11 seconds.
- Determine the time when all three lights flash at the same time.
Revision quiz for mathematics, covering topics such as factors and geometry. Make sure to have necessary stationery and follow the guidance provided.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
