Let the speed of the train be x. We know that. Speed = Distance/Time Speed after accident = 3/4 of x = 3x/4 According to the question, The time difference in covering 18 km due to change in speed = 45 - 36 = 9 min 18/(3x/4) -(18/x) =9/60 72/3x)-18/x=9/60 x = 40 km/h The original speed of the train is 40 Km/h.
Identify the element that doesn't belong to the hardware category:
Which of the following is designed to control the operations of a computer?
For predicting the weather which of the following is used?
A large network that usually spans several buildings in the same city or town that connects two or more computers, communicating devices or networks in ...
What is the attempt to acquire sensitive information such as usernames, passwords, and credit card details (and sometimes, indirectly, money) by masquer...
…………….are used to identify a user who returns to a Website
Which among the following is not an input device?
What is the shortcut key to ‘refresh the current web page ’?
Who among the following is known as father of Internet?
Chief component of first generation computer was
