Question
A car travels 60 km at a speed of 30 km/hr, then 90 km
at a speed of 45 km/hr, and finally 80 km at a speed of 40 km/hr. Find the average speed of the car for the entire journey.Solution
Total distance = 60 + 90 + 80 = 230 km. Time for 60 km = 60 / 30 = 2 hours, for 90 km = 90 / 45 = 2 hours, and for 80 km = 80 / 40 = 2 hours. Total time = 2 + 2 + 2 = 6 hours. Average speed = Total distance / Total time = 230 / 6 ≈ 38.33 km/hr. Answer: b) 38.33 km/hr
The PMSBY is targeted primarily at which segment of the population?
The Pradhan Mantri Janjatiya Unnat Gram Abhiyan has a special focus on Forest Right Act (FRA) patta holders. Which of the following is NOT a feature of ...
A cable-stayed bridge in the Reasi district of Jammu and Kashmir will be completed by December this year. It is built over the which of the river?
What is India’s updated long-term credit rating as per Morningstar DBRS in 2025?
Which ministry has launched ‘One Station One Product’ (OSOP) scheme over Indian Railways with objectives to promote ‘Vocal for Local’ vision of ...
What was the theme of Uttar Pradesh tableaux which was the winner of this year’s Republic Day Parade among 12 States and Union Territories (UT)?
The Jal Jeevan Mission aims to provide functional tap water connections to every rural household by 2024. Which of the following is NOT a focus area und...
What is the initial financial commitment of Karnataka government to the B-SMILE infrastructure initiative?
Who has been appointed as the Secretary (at the Director level) of the National Jute Board in Kolkata?
 In which city of state Kerala, the first ever Olympic games has started?
