Question
Train ‘A’ can cross a pole in 8 seconds and a 70
metre long platform in 12 seconds. If the ratio of length of train ‘A’ and train ‘B’ is 2:5, respectively, then find the time taken by train ‘B’ to cross a pole with a speed of 25 m/s.Solution
Let the length and speed of the train ‘A’ be ‘l’ metre and ‘s’ m/s, respectively. According to question, l = 8s Also, 12s = 8s + 70 Or, 4s = 70 Or, s = 17.5 Therefore, length of train ‘A’ = 8s = 140 metres Length of train ‘B’ = 70 × (5/2) = 350 metres Required time taken = 350 ÷ 25 = 14 second
Who among the following likes Banana fruit?
Who among the following is designated as CGM?
The one who wears Noise born in which month and year?
Which among the following combinations is/are true?
I. Nakul and the one belongs to Kanpur were born in the month having 31 days.
II. One ...
If T is related to Mango and W is related to Guava in a certain way. Then, U is related to which of the following?
Which one of the following combination is incorrect?
How many such pair(s) of letters are in the word “CONVERSATION” which has as many letters between them (both forward and backward) as in the English...
Who among the following person lives immediate above flat of O?
What is the position of Box D with respect to Box G?
Which of the following does not belong to the group?
Relevant for Exams:
