Question

a person running with a speed of 15 kph Crosses a bridge in 10 minute find the length of the bridge

Answer 1

Speed = 15km/h

Time needed = 10 mins

Convert the time to hour:

10 mins = 10/60 = 1/6 hour

Find the distance:

Distance = Speed x Time

Distance = 15 x 1/6 = 2.5 km

Answer: The bridge is 2.5 km long

Answer 2

Answer:

Length of Bridge is 2.5 km

Step-by-step explanation:

Given: Speed of person = 15 kmph

           Time Taken by him to cross the bridge = 10 minutes

To find: Length of the bridge

First we convert the time in hour.

[tex[1\,min=\frac{1}{60}\,hr[/tex]

[tex[\implies10\,min=\frac{10}{60}=\frac{1}{6}\,hr[/tex]

Now we use relation of Speed , Distance and Time

we have

$Speed=\frac{Distance}{Time}$

$Distance=Speed\times Time$

$Distance=15\times\frac{1}{6}$

Distance = 2.5 km

Therefore, Length of Bridge is 2.5 km