IPMAT WhatsApp Group
Sign in
Please select an account to continue using cracku.in
↓ →
IPMAT WhatsApp Group
A person travels three equal distances at a speed of 'a' km/hr, 'b' km/hr and 'c' km/hr respectively. What is the average speed for the whole journey?
Let the three equal distances be denoted by D.
Total Distance covered $$=D+D+D=3D$$
Total time travelled $$=\dfrac{D}{a}+\dfrac{D}{b}+\dfrac{D}{c}=D\left(\dfrac{ab+bc+ca}{abc}\right)$$
Average speed = Total Distance Covered / Total Time travelled
$$=\dfrac{3D}{D\left(\frac{ab+bc+ca}{abc}\right)}$$
$$=\dfrac{3abc}{\left(ab+bc+ca\right)}$$
Click on the Email ☝️ to Watch the Video Solution
Crack IPMAT 2026 with Cracku
Educational materials for IPMAT and IIMB UG preparation
Ask our AI anything
AI can make mistakes. Please verify important information.
AI can make mistakes. Please verify important information.