Lesson OT2.1-OT2.7
OT2.1-OT2.7 Mathematical problem solving Quiz: AQA Further Maths, Unit 1
20 questions
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Lesson OT2.1-OT2.7, Mathematical problem solving: 20 multiple choice questions for the AQA Further Maths (7367), Unit 1: Overarching themes, written with Revision Ninja.
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The 20 questions
-
In the problem solving cycle, which stage comes immediately after processing and representing information?
- Checking the original units
- Interpreting results
- Specifying the problem
- Collecting information
-
Which is the correct order of the first two stages of the problem solving cycle?
- Process information, then collect information
- Specify the problem, then collect information
- Interpret results, then specify the problem
- Collect information, then specify the problem
-
Which description best matches abstraction in problem solving?
- Adding extra variables and conditions so that the problem becomes harder to read
- Memorising a worked answer to a standard problem so it can be repeated without reasoning
- Removing irrelevant detail to reveal the underlying mathematical structure
- Checking the final answer on a calculator without any reasoning about the structure
-
The phrase the cost rises by 5% each year is best modelled by which structure?
- A geometric sequence with common ratio 0.05
- A geometric sequence with common ratio 1.05
- An arithmetic sequence with common difference 5
- An arithmetic sequence with common difference 1.05
-
A rectangle has a perimeter of 36 cm and its length is twice its width. What is its area?
- 144 cm^2
- 48 cm^2
- 36 cm^2
- 72 cm^2
-
A town's population is modelled by P(t) = 5000 x 1.03^t. Approximately what is P(10)?
- About 6720
- About 5300
- About 5150
- About 8000
-
Solve the simultaneous equations x + y = 10 and x - y = 4. What is x?
- x = 6
- x = 5
- x = 3
- x = 7
-
A right-angled triangle has legs of 5 cm and 12 cm. What is the length of its hypotenuse?
- 17 cm
- 15 cm
- 13 cm
- 119 cm
-
Two trains start 300 km apart and travel towards each other at 60 km/h and 90 km/h. How long until they meet?
- 2 hours
- 3 hours
- 2.5 hours
- 5 hours
-
Find the sum of the first 20 terms of the arithmetic series 3 + 7 + 11 + ...
- 780
- 820
- 860
- 410
-
For which value of k do the equations x + ky = 2 and 2x + 4y = 4 have infinitely many solutions?
- k = 1/2
- k = 2
- k = 4
- k = -2
-
Find the sum to infinity of the geometric series 12 + 6 + 3 + ...
- 12
- 18
- 36
- 24
-
A cylinder has radius r and height h with volume 100 pi cm^3. Which expression gives its surface area in terms of r alone?
- pi r^2 + 200 pi / r
- 2 pi r^2 + 100 pi / r
- 2 pi r^2 + 200 pi / r
- 2 pi r^2 + 400 pi / r
-
A bag holds 3 red and 2 blue balls. Two are drawn without replacement. What is the probability both are red?
- 9/25
- 3/5
- 1/5
- 3/10
-
A model predicts a profit of 4.2 million pounds but the actual result is 1.1 million pounds. Which is the most appropriate next step in the problem solving cycle?
- Accept the model because it was carefully constructed
- Revisit the assumptions and refine the model
- Treat the difference as random noise and stop
- Round the profit to the nearest million and stop
-
How many solutions in non-negative integers (x, y) satisfy 2x + 3y = 12?
- 2
- 5
- 4
- 3
-
The number of handshakes among n people, each shaking hands once with every other person, is n(n-1)/2. For how many people does the number first exceed 100?
- 20 people
- 16 people
- 15 people
- 14 people
-
What is the largest integer n such that 2^n is less than 1000?
- 8
- 9
- 500
- 10
-
A price of 40 pounds is reduced by 25%, then the new price is reduced by a further 20%. What is the final price?
- 30 pounds
- 25 pounds
- 24 pounds
- 22 pounds
-
A 5 m ladder leans against a wall with its foot 3 m from the wall. The foot then moves to 4 m from the wall. By how much does the top of the ladder drop?
- 0.5 m
- 3 m
- 2 m
- 1 m
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