Start learning 50% faster. Sign in now
Let the distance be x km. Time taken to go = x / 30 hours, Time taken to return = x / 20 hours. Total time taken = x / 30 + x / 20 = (2x + 3x) / 60 = 5x / 60 = x / 12 hours. Average speed = Total distance / Total time = (2x) / (x / 12) = 24 km/h.
Which of the following is the purpose of the 'Cell Padding' property in a table in MS Word?
In MS Word 365, what do you mean by the hamburger menu?
Which out of the following is not an example of a Relational Database Management System (RDBMS)?
What does the acronym 'HTTP' stand for in web technology?
3rd Generation computer -
Pagination refers to
Which out of the following is the correct full form of VoIP?
What is the primary function of an AND gate in digital logic?
Digital computer deals with ____?
A signal from a device attached to a computer or from a program within the computer that requires the operating system to stop and figure out what to ...