Correct Answer - Option 1 : 1250/9

Given :

Distance between Arunachal Pradesh and Gujarat = 2500 km

Actual time taken by aeroplane to cover distance = 11 – 1 = 10 hours

Formula Used:

Distance = speed × time

x km/hr = 5/18 × x m/s

Calculation:

⇒ Distance = speed × time

⇒ 5000 = speed x 10

⇒ Speed = 500 km/hr

∴ Speed of Aeroplane in m/s = (5/18) × 500 = 1250/9 m/s