It will take Mallory 40 minutes to get to the airport by train.
Step-by-step explanation:
Given,
Time taken by car = 120 minutes
Time taken by train = t
According to given statement;
Time taken by car = 3 times time taken by train

Dividing both sides by 3

It will take Mallory 40 minutes to get to the airport by train.
Keywords: division, multiplication
Learn more about division at:
#LearnwithBrainly