(a) The time taken to complete a journey halves as the speed doubles.
On the axes below, sketch a graph to show this relationship.
[2]
(b) It takes 40 minutes to fill a garden pond using water from 5 identical hose pipes.
Assuming the rate of flow of water from each hose pipe is the same, work out how many minutes it would take to fill the same garden pond using 2 of these hose pipes. [2]
Mark scheme (a)
Answer
Marks
Part marks and guidance
Correct shape, not touching the axes
2
Condone slight curvature away from axes at the extremes
B1 for correct curve but touching, not crossing, one or both axes
Ignore scales
Mark scheme (b)
Answer
Marks
Part marks and guidance
100
2
M1 for \(\frac{40 \times 5}{2}\) oe or B1 for 200 or 2.5 or 0.4
