A person walks a distance from point P to Q at 30 km/h and from point Q to P 60 km/h.  If he takes 6 hours to complete the journey, then what is the distance from point P to Q?

150 km 130 km 100 km 120 km

120 km

3 R → 6 hours 1 R → 2 hours Distance 60 R = 60 × 2 = 120 km