Question

A truck travelled 100 km towards the north direction from a point A. From there, it travelled 80 km in the south direction. How far is the truck from point A now?

Answer 1

After travelling 100 km north and then 80 km south from point A, the truck is 20 km north from its starting point A.

Step-by-step explanation:

The student's question involves a truck that initially travels 100 km north from point A, and then travels 80 km south. To determine how far the truck is from the starting point A after these movements, simple subtraction can be used because the movements are along the same line but in opposite directions.

The calculation is as follows:

• Distance traveled north: 100 km
• Distance traveled south: 80 km
• Net distance from point A (100 km - 80 km): 20 km north

Thus, the truck is 20 km north from its starting point A after completing these two trips.