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Past Papers
13

y is directly proportional to x.

y = 24 when x = 1.5

Work out the value of y when x = 5

y = 
AI solution
(Total for Question 13 is 3 marks)
14

(a)  Write 116 in the form 4n where n is an integer.

(1)

(b)  Work out the value of 8 5⁄3 − 9 1⁄2

(3)
AI solution
(Total for Question 14 is 4 marks)
15

p is inversely proportional to q².

p = 50 when q = 2

Find the value of p when q = 5

p = 
(Total for Question 15 is 3 marks)

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Direct proportion Maths · GCSE
y is directly proportional to x.
y = 24 when x = 1.5
Work out the value of y when x = 5
y = 
Variation 1 of ∞
AI solution
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Your answer Q3 of 10
y is directly proportional to x.
y = 24 when x = 1.5. Find y when x = 5.
y = 
Worked solution

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13  y is directly
proportional to x.

y = 24 when x = 1.5

Work out y when x = 5
Detected
Question recognised
Maths · Proportion
CONFIDENCE · 94%
→ Solve with AI
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Step-by-step solution AI · LIVE
y ∝ x  ⇒  y = k · x
1
Sub in values
24 = k × 1.5
2
Solve for k
k = 24 ÷ 1.5 = 16
3
Plug x = 5
y = 16 × 5 = 80
ANSWER y = 80
STEP 03

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