Question
The speed of a car is 20% more than that of a bike. Both
of them start from a same point. After travelling for 5 hours, the speed of the bike is increased by 20%. After 7 hours from starting, the car was 78 km ahead of the bike. Find the initial speed of the bike.Solution
Let the initial speed of the bike be x km/hr Therefore, speed of the car = 1.20x km/hr According to the question, 7 x 1.20x - (5x + 2 x 1.20x) = 78 =gt; 8.4x - 7.4x = 78 =gt; x = 78/1 = 78 km/hr
What is the purpose of the with statement when working with files?
Data Frame are associated with which layer of OSI Model
- What will be the output of the following Java code snippet, which implements a simple ArrayList and performs an insertion and a retrieval? import java.util...
Which of the following protocols is responsible for sending and receiving emails across the internet?Â
In data analytics, which algorithm is commonly used for predictive modeling when the target variable is categorical?   Â
Which of the following SQL queries is used to find the second highest salary from an employee table?
SELECT MAX (salary) Â Â Â Â Â Â Â FROM empl...- Which attack type specifically targets application-layer protocols like HTTP, DNS, and SMTP?
Which of the following is the most effective method for ensuring that an organization complies with security and privacy regulations such as GDPR or HIP...
In database management systems (DBMS), which normalization form removes partial dependency?
Which of the following statements best describes a key difference between virtual machines and containers?Â
Relevant for Exams:
