Question

A man completes a journey in 10 hours. He travels first half of the journey at the rate of 21 km/hr and the second half at the rate of 24 km/hr. Find the total journey in km..

Answer 1

Answer:

the answer is simple: just follow these steps

Step-by-step explanation:

*in the question it says 10hrs and two speed is half of the total hour.*

therefore,   first 5hrs is 21km/hr

             second 5hrs is 24km/hr

d=s×t

     first---->21×5=105

second---->24×5=120

adding first and second we get:

105+120=225

now,

s=d÷t

s=225÷10

therefore, s=22.5km/hr