Lesson R7
R7 understand and use proportion as equality of ratios Quiz: Pearson Edexcel Maths, Unit 3
20 questions
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Lesson R7, understand and use proportion as equality of ratios: 20 multiple choice questions for the Pearson Edexcel GCSE Maths (1MA1), Unit 3: Ratio, proportion and rates of change, written with Revision Ninja.
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The 20 questions
-
The statement a:b = c:d means
- a - b = c - d
- a x c = b x d
- a + b = c + d
- a/b = c/d
-
Direct proportion means y is
- a constant divided by x
- a constant multiple of x
- a constant difference from x
- x squared
-
Inverse proportion means y is
- a constant divided by x
- x squared
- x plus a constant
- a constant multiple of x
-
Which key feature does the graph of any direct proportion relationship always possess?
- horizontal asymptote
- y-intercept of two
- negative gradient
- passes through origin
-
If y is directly proportional to x, the ratio y:x is
- changing
- always 1
- zero
- constant
-
What shape is the graph of an inverse proportion relationship represented by y = k/x?
- cubic wave
- reciprocal curve
- quadratic parabola
- straight line
-
Which ratio is equal to 3:5?
- 9:15
- 5:3
- 3:6
- 6:9
-
If y is directly proportional to x and x doubles, y
- squares
- halves
- stays the same
- doubles
-
If 2:3 = 6:x, then x equals
- 12
- 9
- 2
- 4
-
If 5 pens cost £7.50, the cost of 8 pens at the same rate is
- £13.50
- £11.50
- £12
- £10
-
y is directly proportional to x, and y = 12 when x = 4. When x = 7, y =
- 18
- 21
- 16.8
- 28
-
y is inversely proportional to x, and y = 6 when x = 2. When x = 3, y =
- 4
- 3
- 12
- 9
-
Four workers take 6 days to finish a job. With 3 workers at the same rate, the job takes
- 18 days
- 4.5 days
- 8 days
- 6 days
-
On a map, 2 cm represents 5 km. A distance of 7 cm represents
- 12 km
- 17.5 km
- 35 km
- 14 km
-
Blue to white paint is 3 litres to 5 litres. For 9 litres of blue, the white needed is
- 12 litres
- 27 litres
- 5.4 litres
- 15 litres
-
Solving 4:x = 12:15 gives x equal to
- 4.8
- 20
- 5
- 3
-
y is directly proportional to x^2. If y = 8 when x = 2, then y = ? when x = 6.
- 72
- 36
- 48
- 24
-
y is inversely proportional to x^2. If y = 5 when x = 2, then y when x = 10 is
- 0.2
- 1
- 0.5
- 2
-
A journey takes 4 hours at 60 km/h. At 80 km/h, the journey takes
- 2.5 hours
- 3 hours
- 4.5 hours
- 5 hours
-
If (x + 2) : 5 = 6 : 10, then x equals
- 3
- 12
- 1
- 4
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