Question

A man covers first 112 km of his journey in 56 km/hr, next 105 km in 10 km /hr and the last 68 km in one hour. Find his average speed during the whole journey.​

Answer 1

Answer:

$\large \pink {\tt {Average~ Speed = \frac {Total ~Distance}{Total~Time}}}$

$\large \pink {\tt {Total ~Distance = 112+105+68}} \\ \large \pink {\tt { =285~km}}$

$\large \pink {\tt {Total~Time=56+10+1=67~hr}}$

$\large \pink {\tt {Average~ Speed = \frac{285}{67} =4.25~km/hr}}$