Question
Two trains ‘A’ and ‘B’ of length 480 metres and 320
metres respectively are travelling towards each other. Ratio of speed of ‘A’ to ‘B’ is 2:3. If the trains take 32 seconds to cross each other from the time they meet each other, then find the average of speeds (in km/h) of trains ‘A’ and ‘B’.Solution
Let the speed of ‘A’ and ‘B’ be ‘2y’ and ‘3y’ m/s respectively.
Relative speed = 2y + 3y = ‘5y’ m/s
ATQ,
5y × 32 = 480 + 320
⇒ 160y = 800
⇒ y = 5
Therefore, required average = (2y + 3y) ÷ 2
= 2.5y = 2.5 × 5 = 12.5 m/s = 12.5 × (18/5) = 45 km/h
In the context of electronic or digital records, when a record is stored in multiple storage spaces in a computer resource, how is each automated storag...
According to Section 36(4) of the Code on Wages, 2019, what is the purpose of carrying forward excess allocable surplus or minimum bonus to the succeed...
If a partner earns any personal profits from the business of the firm:
In how many cases the right of private defence of the body extends to causing death?
What are the classes of Criminal Courts besides the High Courts and the Courts constituted under any law, other than the Bhartiya Nagarik Suraksha Sanhi...
Which of the following is an offence against State?
What are the prohibitions with respect to strikes and lock outs on a person employed in a public utility service, in breach of contract?
Which of the following words were added to the Preamble by 42nd Amendment Act, 1976?
Section 19 of the Court Fee Act 1870 relates to:
Under the provisions of Code 76 of the Occupational Safety, Health and Working Conditions Code, 2020, what happens if a worker is entitled to more favo...
Relevant for Exams:
