A runs twice as fast as B and B runs thrice as fast as C. The distance covered by C in 72 minutes, will be covered by A in :
A. 12 min
B. 16 min
C. 18 min
D. 24 min
Answer: Option A
Solution(By Examveda Team)
Let C's speed = x km/hrThen, B's speed = 3x km/hr
And A's speed = 6x km/hr
∴ Ratio of speeds of A, B, C
= 6x : 3x : x
= 6 : 3 : 1
Ratio of times taken
= $$\frac{1}{6}$$ : $$\frac{1}{3}$$ : 1
= 1 : 2 : 6
If C takes 6 minutes, then A takes 1 minute
If C takes 72 minutes, then A takes $$\left( {\frac{1}{6} \times 72} \right)$$ min = 12 min
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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