Question

6.
Two persons P and Q start at the same time from city A to city B, 60 km away. P travels 4 Km/hr
slower than Q. Q reaches city B and at once turns back meeting P, 12Km from city B. What is the
speed of P?
[ ]
a) 8 Km/hr
b) 12 Km/hr
c) 16 Km/hr
d) 20 Km/hr
​

Answer 1

Answer:

8 km/hr

Step-by-step explanation:

AB=60km, BC=12km, AC=48km

Let the speed of P be x kmph so that speed of Q is (x+4)kmph. Time for P to cover a distance AC and time for Q to cover (AB+BC) are equal.

∴x+472=x48⟹x=8kmph