Question

Biking at 8 mph, it takes Kristen 1/4 hour to reach the train station to go to work. Kristen then takes the train to work, and it takes another 1/4 hour for her to get to work when the train travels 28 mph. How far does Kristen travel to work?

Answer 1

Answer:

9 miles

Step-by-step explanation:

She bikes at 8 mph. That means she travels 8 miles in one hour. In 1/4 hour, she travels 1/4 of 8 miles.

1/4 * 8 miles = 2 miles

She travels 2 miles by bike.

The train travels at 28 mph. That means the train travels 28 miles in one hour. In 1/4 hour, the train travels 1/4 of 28 miles.

1/4 * 28 miles = 7 miles

She travels 7 miles by train.

Total distance = 2 miles + 7 miles = 9 miles