Question

please koi in sab ka bhi de do maths questions hain dimag se bahar koch samajh noe araha hain ​

Answer 1

Answer:

• Let the length be x m.

Then, (x + 100) = 72 × 25 × 5/18 = 500

∴ x = 500 - 100 = 400 m

Answer 2

Step-by-step explanation:

The length of the bridge is 400 m

Step-by-step explanation:

Let the length of the bridge is x m.

Speed of the train is 72 km/h = 72×5/18 = 20 m/s

Time taken to cross the bridge = 25 s

Distance traveled by the train = Length of the train + length of the bridge

d = 100 +x

Now, using the relation of speed, distance and time

Speed = Distance/time

\begin{gathered}20=\frac{100+x}{25}\\\\100+x=500\\x=400\end{gathered}

20=

25

100+x

100+x=500

x=400

Therefore, the length of the bridge is 400 m

ye bridge ka hai