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Arithmetic Ability
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Q.
Two trains are running at 60 km/hr and 20 km/hr respectively in the same direction. Fast train completely passes a man sitting in the slower train in 6 seconds. What is the length of the fast train ? A. 66 2/3 mts B. 66 3/2 mts C.63 4/5 mts D. 63 5/4 mts
A.
Option A
B.
Option B
C.
Option C
D.
Option D
View Answer
Correct choice: A
Explanation:
As Trains are moving in same direction, Relative Speed = 60-20 = 40 kmph --> 40× 5/18=100/9 m/sec Length of Train= Speed * Time Length = 100/9×6 ⇒200/3=66 2/3 mts
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