Question
The ratio of the length of two trains P and Q is 5:6 and
the ratio of the time taken by both trains to cross a man standing on a platform is 2:3. If the speed of the train P is 25 km/h, then find the speed of the train Q in m/s.Solution
Let the length of train P = 5a , time = 2b Speed = 5a/2b Let the length of train Q = 6a , time = 3b Speed = 6a/3b Ratio of the speed = (5a/ 2b)/ (6a/ 3b) => 5/4 Speed of train Q = (25/5) × 4 = 20 km/h in m/s = 20 × (5/18) = 50/9 m/s
There are five persons J, K, L, M, and N, who live in a 5-storey building such that bottommost floor of the building is marked as 1, floor above it is ...
Four of the following five are alike in a certain way and hence form a group. Which is the one that does not belong to the group?
Which of the following combinations is true with respect to the given arrangement?
How many persons likes between the one, who likes Grapes and the one, who has Green colour?
Which of the following statement(s) is true with respect to team which plays Y?
Which of the following boxes is placed between box Y and box W?
Which is the odd man out?
Who lives immediately above T?
Who among the following is the second youngest?
Which of the following combination is correct?
Relevant for Exams:
