If the body covers one-third distance at speed v1, next one third at speed v2 and last one third at speed v3, then average speed will be

(1) v1v2+v2v3+v3v1v1+v2+v3

(2) v1+v2+v33

(3) v1v2v3v1v2+v2v3+v3v1

(4) 3v1v2v3v1v2+v2v3+v3v1  

To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level: