Correct Answer - Option 4 : 180 km
Given
Speed of the person = 20 m/sec
Formula used:
1 m/sec = (18/5) km/hr
Calculation:
Speed of the person = 20 m/sec
⇒ 20 × (18/5)
⇒ 72 km/hr
According to the question,
Total distance covered in given time = 72 × {2 + (1/2)}
⇒ 72 × (5/2)
⇒ 36 × 5
⇒ 180 km
∴ Total distance covered by the person in 2 hour and 30 minutes is 180 km.
