Answer:
Laps of Luke for 1,2,3 and 4 practices = 4
Laps of Alex for 1,2,3 and 4 practices = 12
For three practices Luke:Alex = 3:9
Step-by-step explanation:
Practice number 1 2 3 4
Luke (Laps) 1 1 1 1
Alex (Laps) 3 3 3 3
Now by simply adding numbers of laps for Luke and Alex one can get the answer.
For Luke, total number of Laps = 1+1+1+1 = 4
For Alex, total number of Laps = 3+3+3+3 = 12
Now, for three practices
For Luke, total number of Laps = 1+1+1 = 3
For Alex, total number of Laps = 3+3+3 = 9
The comparison for three practices can be shown as
Luke:Alex = 3:9