### Instruction: Yvonne swims 10 laps in 5 minutes.  Her younger sister can swim half as many laps as Yvonne in the same time frame.  Their brother Joel can swim three times the number of laps as the youngest sister.  How many laps can Joel swim? Let's write a program.### Response: # define the number of laps Yvonne swims
Yvonne_laps = 10

# calculate the number of laps the younger sister swims
sister_laps = Yvonne_laps / 2

# calculate the number of laps Joel swims
Joel_laps = sister_laps * 3

# print the result
print(int(Joel_laps))