Question

Mr. Lee regularly spends a total $145 commuting to work by train Monday through Friday. On Wednesday of a given five-day week, however, Mr. Lee decides to commute to work by car, instead of by train. If the cost of commuting by car is $7, how much money does Mr. Lee save commuting to work that week? (Assume the regular train fare is the same each day of the week.)

Options:
F. $7
G. $12
H. $22
J. $138
K. $143

Answer 1

Mr. Lee saves $7 by commuting to work by car instead of by train on Wednesday.

Step-by-step explanation:

To calculate how much money Mr. Lee saves commuting to work that week, we need to calculate the total cost of commuting by train and the total cost of commuting by car. To commute by train, Mr. Lee spends a total of $145 from Monday through Friday. Since he commutes by car on Wednesday, he saves the cost of commuting by train for that day, which is $145 / 5 = $29. Therefore, Mr. Lee saves $29 by commuting to work by car on Wednesday.

Since the cost of commuting by car is $7, Mr. Lee saves $7 on Wednesday by choosing to commute by car instead of by train. So, the correct answer is option F. $7.