42 Views

Question : A tourist van travels the distance of 35 km from Dehradun to Mussoorie at an average speed of 36 km/h and returns at 60 km/hr. What is the approximate average speed (in km/hr) of the tourist van for the entire journey?

Option 1: 48

Option 2: 42

Option 3: 45

Option 4: 50


Team Careers360 7th Jan, 2024
Answer (1)
Team Careers360 21st Jan, 2024

Correct Answer: 45


Solution : Speed of going = 36 km/hr
Speed of coming = 60 km/hr
We know that,
Average speed = $\frac{\text{2 × (Speed of going) × (Speed of coming)}}{\text{(Speed of going) + (Speed of coming)}}$
= $\frac{2\times36\times60}{36+60}$
= $\frac{4320}{96}$
= 45 km/hr
Hence, the correct answer is 45.

Know More About

Related Questions

TOEFL ® Registrations 2024
Apply
Accepted by more than 11,000 universities in over 150 countries worldwide
Manipal Online M.Com Admissions
Apply
Apply for Online M.Com from Manipal University
View All Application Forms

Download the Careers360 App on your Android phone

Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile

150M+ Students
30,000+ Colleges
500+ Exams
1500+ E-books