Question
The speed of ‘A’ and ‘B’ is 60
km/hr and 30 km/hr, respectively. If the distance covered by ‘A’ in ‘x’ hours is 120 km more than that by ‘B’ in the same time, then find the value of ‘x’.Solution
If the time is same, then the ratio of the speeds is equal to the ratio of the distance covered Therefore, ratio of the distance covered by ‘A’ and ‘B’ = 60:30 = 2:1 Let the distance covered by ‘A’ and ‘B’ be 2y km and y km, respectively According to the question, 2y – y = 120 Or, y = 120/1 = 120 Therefore, distance coved by ‘A’ = 2y = 240 km Time taken by ‘A’ = x = 240/60 = 4 hours
Relational Algebra is
B-trees and B+ trees are primarily used for efficient storage and retrieval of data in:
In the first step of the TCP three-way handshake, what does the client (initiator) do?
What is the worst-case time complexity of inserting n elements into an empty linked list, if the linked list needs to be maintained in sorted order? Mo...
Cross-Site Scripting (XSS) attacks primarily target which component of web applications?
Cardinality related to ————–
Which recovery model in a database allows for point-in-time recovery using transaction logs?
What is the primary purpose of the three-way handshake in TCP?
Which logic gate produces an output that is the complement of the input?
Which of the following is an example of two-factor authentication?
