Correct Answer - Option 2 : 0.5 km/h
Given:
Speed of juhi + 5 = speed of darshana
Distance between juhi and darshana = 24 km
Time = 4 hours
Formula used:
Speed = Distance/ Time
m/ s = 5/ 18 km/hr
Calculation:
Let speed of juhi be X km/h and speed of darshana be X + 5 km/h
In order to meet each other they need to travel 24 km
⇒ 24 = (X × 4) + ((X + 5) × 4)
⇒ 24 = 8X + 20
⇒ 4 = 8X
⇒ X = 0.5 km/hr
∴ Speed of juhi is 0.5 km/hr