Question
Speed of a car is (v + 3) km/h, which is 10 km/h less
than that of bike. Time taken by car to cover 84 km is 25% less than the time taken by bike to cover 168 km. Length of a train is (5v + 11) metres. If speed of train is (v - 5) m/s, then find the time taken (in seconds) by train to cross a man standing on a platform of length 420 metres.Solution
Speed of bike = v + 3 + 10 = (v + 13) km/h 84 ÷ (v + 3) = (3/4) × 168 ÷ (v + 13) Or, 84(v + 13) = 126(v + 3) Or, 84v + 1092 = 126v + 378 Or, 42v = 714 Or, v = 17 Length of train = 5 × 17 + 11 = 96 metres Speed of train = 17 − 5 = 12 m/s Since we need to calculate the time taken by train to cross the man standing on the platform, so the length of the platform will not be considered. Required time = 96 ÷ 12 = 8 seconds
Which of the following is a valid ground for processing personal data without consent under the Act?
An unlawful assembly consists of _________ number of persons.
What is the minimum age requirement to obtain a learner's license for a two-wheeler in India, as per the Motor Vehicles Act?
Where the price is not determined by the parties to the contract of sale of goods, what price shall be paid by the buyer:Â
An accomplice shall be a competent witness against?
As per Section 84 of the Right to Fair Compensation and Transparency in Land Acquisition, Rehabilitation and Resettlement Act, 2013, any rehabilitation ...
The President gives his resignation to the:Â
Where immoveable property of one person is by act of parties or operation of law made security for the payment of money to another, and the transaction ...
Which section stipulates the lawful questions that can be asked in cross examinations?Â
Which section of Payment of Gratuity Act, 1972 deals with the determination of the amount of ‘Gratuity’?
