Question

A train travels 45 km at a uniform speed of 90 km/h and the next 25 km at a uniform speed of 50

km/h. Find its average speed.​

Answer 1

Answer:

• avg speed of train = 70km/hr

$\pink{ \bold{ \underline {\underline{Steps \: of \: Solution:}}}}$

$\huge{ \bold{ \underline {\underline{Given:}}}}$

A train travels 45 km at a uniform speed of 90 km/hr and the next 25 km at a uniform speed of 50km/hr.

$\huge{ \bold{ \underline {\underline{To \: find:}}}}$

Avg speed of train ,we need formulae.

i,e. avg speed =(sum of speeds)/(no.of speeds)

$\huge{ \bold{ \underline {\underline{Solotion:}}}}$

avg speed = (90+50)/2 km/hr

= 140/2 km/hr

= 70 km/hr

You get your answer✌️✌️