P and Q are 27 km away. Two trains with speed of 24 km/hr and 18 km/hr respectively start simultaneously from P and Q and travel in the same direction. They meet at a point R beyond Q. Distance QR is :
A. 126 km
B. 81 km
C. 48 km
D. 36 km
Answer: Option B
Solution(By Examveda Team)
Relative speed = 24 - 18 = 6 km/hrTime required by faster train to overtake slower train :
= $$\frac{27}{6}$$
= $$4\frac{1}{2}$$ hr
∴ Distance between Q and R :
= 18 × $$4\frac{1}{2}$$
= 81 km
Related Questions on Speed Time and Distance
A. 48 min.
B. 60 min.
C. 42 min.
D. 62 min.
E. 66 min.
A. 262.4 km
B. 260 km
C. 283.33 km
D. 275 km
E. None of these
A. 4 hours
B. 4 hours 30 min.
C. 4 hours 45 min.
D. 5 hours
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