25
25 (a)
The diagram shows three routes, 1, 2 and 3, between two towns, A and B.
The distance and average speed for each route is shown.
Route 1
30 miles at 40 mph
Route 2
45 miles at 50 mph
Which of the three routes takes the longest time?
You must show your working.
B
Not drawn
accurately
Route 3
50 miles at 60 mph
[4 marks]