Let the speed of the current be x kmph Rate Downstream = (x + 75) kmph According to the question : 150/(x+75) = 1 hour 40 minutes 150/(x+75) = 5/3 hours 450= 5x + 375 5 x = 450 – 375 X= 15 kmph Rate Upstream = 75 – 15 = 60 kmph Required time = 150/60 = 2 hours 30 minutes
Which of the following is a new semantic element introduced in HTML5?
What is the purpose of a firewall in cybersecurity?
Which protocol is responsible for resolving IP addresses to MAC addresses?
What is a smart contract in the context of blockchain technology?
How do you comment a single-line in Python?
Which of following is /are for strict evaluation?
State Yes or No
Overfitting is a type of modelling error which results in the failure to predict future observations effectively or fit additi...
What does PHP stand for?
What is a resource in the context of deadlocks?
Accessing top element of stack without deleting it ?