On a 120 km track, a train travels the first 30 km a uniform speed of 30km/hr. How fast must the train travel the next 90km so as to average 60km/hr for the entire trip?
pragyansalui
Asked:
December 2022
Write a short note on maglev trains. On what principle does it work?
pragyansalui
Asked:
December 2022
Change the following sentences from the active voice to the passive voice: The man cut down the tree. Columbus discovered America. His teacher praised him. The boy teased the dog. The police arrested him. Rama was making a kite. The boy caught the ball. My father will write a letter....