Answer:
Distances travelled towards east from point A will be represented by positive integer i.e. +20 km.Distance travelled towards the west from point B will be represented by negative integer, i.e., —30 km.Final position of Rita from A= 20 km – 30 km = – 10 kmHence, the required position of Rita will be presented by a negative number, i.e., -10.
Step-by-step explanation: