Post Your Answer
Post Your Answer
Post Your Answer
Post Your Answer
Post Your Answer
Post Your Answer
Ans 1:
Class : Class 8
Add up the speeds and multiply with time as trains are in opposite directions.Then subtract the length of the first train.
Ans -1000m
Ans 3:
Class : Class 8
Relative velocity of two trains is 384km/hr=320/3 m/sec.
Therefore,it can travel 1600m in 15 sec.
Therefore, the length of the second train is (1600-600)m=1000m
Post Your Answer
Ans 1:
Class : Class 9
Let the ages of A, B and C be a years, b years and c years respectively.
(a + b) is 12 greater than (b + c)
=> 12 + b + c = a + b
=> 12 + c = a
=> 12 = a - c
So, C is younger than A by 12 years
Answer is A