Question

a boy covers a distance of 25km in 4 hrs partly on foot at the rate of 3.5 kmph and partly on cycle at 9 kmph .find the distance covered on foot.
I request you to explain step by step please I am not understanding the question please.​

Answer 1

Answer:

Let distance covered by foot is 'x' & in time 't

1

'

the x=3.5t

1

[∵speed=

time

Distance

]

(25−x)=9t

2

As t

1

+t

2

=4⇒

3.5

x

+

9

(25−x)

=4

⇒9x−3.5x=38.5

⇒x=7km

Answer 2

Step-by-step explanation:

Hope this helped you

Mark as brainliest