Question
A bus travels 200 miles at a constant speed of 50 miles
per hour. It then makes a 30-minute stop before continuing its journey at a constant speed of 60 miles per hour for another 150 miles. What is the average speed of the bus for the entire journey?Solution
ATQ, Total distance = 200 + 150 = 350 miles Time taken for the first 200 miles = 200/50 = 4 hours Time taken for the last 150 miles = 150/60 = 2.5 hours Total time = 4 + 0.5 (for the stop) + 2.5 = 7 hours Average speed = 350/7 = 50 mph
The 5th term of a GP is 48 and the 8th term is 384. Find the first term.
In a business, A invested Rs. 1500 more than that by B. After 6 months, A left the business. If at the end of the year, profit earned by B is equal to t...
Calculate the total percentage increase in employees from 2019 to 2023 for the entire company.Â
An arithmetic sequence consists of 21 terms. The sum of the three middle terms is 360, while the sum of the last three terms amounts to 1170. Determine ...
A car travels 60 km at a speed of 40 km/h and another 90 km at a speed of 60 km/h. What is the average speed of the car for the entire journey?
The ratio of two numbers 'a' and 'b' is 7:4, respectively. Whereas the ratio of 'b' and 'c' is 5:8, respectively. When 15 is added to 'a', it becomes th...
If A = {{2}, {(3,4}, {6}} which of the following is correct?
The average of 5 numbers is 42. When one of the numbers is excluded, the average of the remaining four numbers becomes 38. Determ...
- What is a hierarchical, decentralized system used to name computers, services, or resources on the internet or private networks?
