Question : A boy rides his bicycle 10 km at an average speed of 12 km/hr and again travels 12 km at an average speed of 10 km/hr. His average speed for the entire trip is approximately:
Option 1: 10.4 km/hr
Option 2: 10.8 km/hr
Option 3: 11.0 km/hr
Option 4: 12.2 km/hr
Latest: SSC CGL preparation tips to crack the exam
Don't Miss: SSC CGL complete guide
New: Unlock 10% OFF on PTE Academic. Use Code: 'C360SPL10'
Correct Answer: 10.8 km/hr
Solution : Average speed = $\frac{total \;distance}{total \;time}$ Average speed = $\frac{10+12}{\frac{10}{12}+ \frac{12}{10}} = \frac{22}{244}\times 120 $ = 10.8 km/hr Hence, the correct answer is 10.8 km/hr.
Candidates can download this ebook to know all about SSC CGL.
Answer Key | Eligibility | Application | Selection Process | Preparation Tips | Result | Admit Card
Question : Rameshwar goes on a trip on his motorcycle and rides for 405 kilometres. If he rides for 6 hours at a speed of 45 km/hr, find at what speed he travels for the remaining 3 hours of the journey.
Question : Gautam goes to work at a speed of 12 km/hr and returns home at 10 km/hr. His average speed is:
Question : A man travels 50 km at 25 km/hr, the next 40 km at 20 km/hr, and then 90 km at 15 km/hr. His average speed is:
Question : A jeep travels to a place 300 km away at an average speed of 60 km/hr and returns at a speed of 30 km/hr. What is the average speed (in km/hr) for the whole journey?
Question : Reshma covers 45 km at a speed of 15 km/hr by bicycle, 80 km at a speed of 40 km/hr by car, and another 6 km at a speed of 2 km/hr on foot. Find her average speed for the whole journey (correct to 2 decimal places).
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile