Final answer:
Ahmed's total distance traveled includes 2.5 km from his home to the school, then an additional 2.5 km to his friend's house, plus 0.5 km to the school, amounting to 5.5 km in total. However, this does not match any of the given options, suggesting an error in the question.
Step-by-step explanation:
The question revolves around calculating the total distance traveled by Ahmed. To determine the total distance traveled by Ahmed, we need to sum the distances of each segment of his trip.
Ahmed starts 2.5 km west of the school and moves 0.5 km east to his friend's house, which is situated 0.5 km east of the school. Initially, Ahmed travels 2.5 km towards the school, and then from his starting point, he makes a trip further east for an additional distance of 2.5 km + 0.5 km, to reach his friend's house. After reaching his friend's house, they walk to school together, which would be another 0.5 km west. Therefore, the total distance Ahmed traveled is the sum of these distances: 2.5 km + 2.5 km + 0.5 km = 5.5 km. However, none of the options presented match this calculation, which may indicate an error in the problem or the presence of a typo in the options provided.