A bus covers the first half of a certain distance with speed v1 and the second half with a speed v2. The average speed during the whole journey is:

A) v1v2/(v1+v2)

B) 2v1v2/(v1+v2)

C) (v1+v2)/2

D) √v1v2

This MCQ is part of the UP PSC Previous Year Questions (PYQs) series, focusing on UPPSC Prelims 2024 (GS Paper I)