Correct Answer - Option 4 : 3
Given:
Square of side = 75 m
And a dog runs around the square with a speed of = 6 km/hr
Formula Used:
The perimeter of a square = 4 × side of the given square
Calculation:
⇒ Speed of the dog in m/sec = 6 × 1000/3600 = 6× 5/18 = 5/3 m/sec
⇒ The perimeter of the Square = 4 × 75 m = 300 m
⇒ Time = Distance/speed
Hence, Time is taken by the dog to travel around the square
⇒ Time = (300)/(5/3) = 60 × 3 seconds or (60 × 3)/60 = 3 minutes
