Question

Residents of Landry Island must take two ferries to get to the mainland. If the first ferry trip is 31 minutes and the second ferry trip is 21 minutes, how long does it take to get to the mainland?

A. Divide 31 by 21
B. Multiply 31 by 21
C. Subtract 21 from 31
D. Add 21 to 31

Answer 1

To find the total time to reach the mainland by ferry, add the duration of both ferry trips: 31 minutes + 21 minutes equals 52 minutes. The correct choice is D. Add 21 to 31.

Step-by-step explanation:

The question regarding the total time taken to reach the mainland by taking two ferry trips can be answered by adding the duration of both ferry trips. The first ferry trip takes 31 minutes and the second ferry trip takes 21 minutes. To find the total travel time, you simply add these two durations together.

Step-by-step Solution:

1. Add the duration of the first ferry trip (31 minutes) to the duration of the second ferry trip (21 minutes).
2. 31 minutes + 21 minutes = 52 minutes.
3. Therefore, the total time to get to the mainland is 52 minutes.

The correct answer is D. Add 21 to 31.