A man driving a car at a speed of 99 km/hr crosses a bridge in 1.2 minutes. Find the length (in metres) of the bridge.

📘 Explanation

Speed = 99 km/hr = $\frac{99 \times 1000}{3600} = 27.5$ m/s
Time = 1.2 minutes = $1.2 \times 60 = 72$ seconds

Distance = Speed × Time
= $27.5 \times 72 = 1980$ m

So, the length of the bridge is 1980 metres.
गति = 99 किमी/घंटा = $\frac{99 \times 1000}{3600} = 27.5$ मी/से
समय = 1.2 मिनट = $1.2 \times 60 = 72$ सेकंड

दूरी = गति × समय
= $27.5 \times 72 = 1980$ मीटर

अतः पुल की लंबाई 1980 मीटर है। ✅