A reconnaissance plane flies 560 km away from its base at 602 m/s, then flies back to its base at 903 m/s. What is its average speed?
Answer in units of m/s.

Approximately .

Explanation:

The average speed of a vehicle is calculated as:

.

In this question, the total distance is .

The unit of the speeds in this question is meters per second, while the unit of distance is kilometers. Convert the unit of distance to meters:

.

.

Time required for the first part of this trip:

.

Time required for the second part of this trip:

.

The time required for the entire trip would be approximately .

Calculate the average speed of this plane:

.

think its the third option