Question
A train 300 metre long takes 30 sec to cross a man
running at a speed of 6 km/hr in the direction opposite to that of train. What is the speed of the train?Solution
Let the speed of the train be x Relative speed = (x + 6) km/hr ⇒ (x + 6) = (300 × 18)/(30 × 5) ⇒ (x + 6) = (5400)/(150) ⇒ x + 6 = 36 ⇒ x = 36 – 6 = 30 km/hr
If A # B means A is mother of B. A @ B means A is brother of B. A % B means A is sister of B. A $ B means A is father of B. In expression G # R $ M % H ...
Statements : R < Q ≤ T > S = V, D < F ≤ Q
Conclusions : I. T > D II. F < R
If 'X@Y' means 'X is married to Y', 'X#Y' means 'X is mother of Y', 'X$Y' means 'X is sister of Y', 'X%Y' means 'X is brother of Y. If 'L @ M # N @ O #...
If 'E & N # O' is true, then how is E related to K?
If 'V ?J + F > M' is true, then how is O related to V?
In a certain code language,
A + B means 'A is the brother of B'.
A - B means 'A is the father of B'.
A X B means 'A is the m...
If ‘W#U#T?R*S’ is true then how is T related to W?
If (A @ B) means A is son of B, (A # B) means A is father of B, (A & B) means A is mother of B, (A $ B) means A is brother of B. If R @ S&T # U $ V@ W, ...
- Which of the given expressions indicates that T is the grandmother of X?
Answer the following question based on the direction given below.
If 'A#B' means 'A is father of B'
'A@B' means 'A is brother of B' ...
