1800 metres long train crosses a man who is moving in the same direction with a certain speed, in 90 seconds. If the same train can cross a tree in 18 seconds with the same speed, then find the speed of the man.
Speed of train = 1800/18 = 100 m/sec Let the speed of the man be ‘s’ m/sec Relative speed of the train = (100 – s) m/sec According to the question, (100 – s) = 1800/90 Or, s = 100 – 20 = 80 Therefore, speed of the man = 80 m/sec
Which of the following can be the correct conclusion drawn from the expression?
‘R + S % T $ U @ V’?
A is the husband of B, C is the mother-in-law of B, D is the father of A, E is the mother of D, F is the mother of C and G. If H is the father of D, th...
Which of the following can be the correct conclusion drawn from the expression
‘P % Q + R @ S % T’
I. B is the brother of C.
II. D is the daughter of C.
III. L is the sister of B
IV. H is the mother of D.
How L is r...
How is A related to Z?
What will come in the place of question mark (?) in the expression ‘A + B @ C % D ? E’ if it indicates that ‘ C is grandfather of E&rs...
There are six persons, C, D, E, F, G and H in a family. H is the paternal grandmother of C. E is the sister of G. D is the father of E. C is the only so...
How is Q related to H?
If 'L@M' means L is spouse of M. L#M means L is sister of M. L$M means L is brother of M. L%M means L is son of M. If 'P % Q @ R $ S # T % U' is true, t...
Which of the following indicates that ‘D is grandmother of T’?
