Ramesh’s speed upstream = 8 – 4 = 4kmph Ramesh’s speed downstream = 8 + 4 = 12kmph Let the distance be x km. ∴ Time taken upstream = x/4 kmph And time taken downstream = x/12 kmph ∴ Average speed = 2x/(x/4+ x/12) = 6 kmph Alternate method: Average speed during whole journey = (U^2-V^2)/U= (8^2-4^2)/8=(64-16)/8=48/8=6kmph
Which of the following represents the Preorder Traversal of the binary tree given below?
A / \ B C ...In an IoT ecosystem, which protocol is most efficient for constrained devices communicating over lossy networks?
...What is the time complexity of searching an element in a balanced binary search tree (BST) with nnn nodes?
In asymmetric encryption, which of the following statements is correct?
Which of the following attacks can occur when a user is tricked into performing unintended actions on a trusted website without their knowledge?
Which of the following collision resolution techniques involves storing all elements that hash to the same value in a linked list?
Which of the following statements accurately describes the function of a Gantt Chart in project management?
What is the output of the following recursive function call func(3) ?
int func ( int n) {
if (n == 0 ) return 1 ; <...
Which testing type evaluates internal code logic and control flow?
Which encryption technique is used in Transport Layer Security (TLS) to securely establish a session key?
