A man travels from Point P to Q at 90 km/hr 90 \text{ km/hr} 90 km/hr and from Q to R at 60 km/hr 60 \text{ km/hr} 60 km/hr . The total distance betwe...

Question

A man travels from Point P to Q at 90 km/hr90 \text{ km/hr} and from Q to R at 60 km/hr60 \text{ km/hr}. The total distance between P and R is 200 km200 \text{ km}. If his average speed for the entire journey is 75 km/hr75 \text{ km/hr}, find the distance between P and Q.

Options

A.

80 km

B.

120 km

C.

100 km

D.

150 km

average speeddistancespeedtimealgebra

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