Search
.Management Sciences
A. 36km/h
B. 45km/h
C. 48km/h
D. 50km/h
Explanation:
Speed of person from x to y =40 km/h
Speed of person from y to x =(40×150)/100 = 60km/h
Since the distance travelled is same
Therefore, Average Speed = (2x40x60)/40+60 = 48km/h
Related Mcqs:
- A building contractor employs 20 male, 15 female and 5 child workers. To a male worker he pays Rs.25 per day, to a female worker Rs.20 per day and a child worker Rs.8 per day. The average wage per day paid by the contractor is__________?
- A. Rs.20 B. Rs.21 C. Rs.22 D. Rs.23...
- The average weight of 25 persons sitting in a boat had some value. A new person added to them whose weight was 46 kg only. Due to his arrival, the average weight of all the persons decreased by 5 kg. Find the average weight of first 25 persons?
- A. 55 kg B. 62 kg C. 56 kg D. None...
- The average of the marks of 12 students in a class is 36. If the marks of each student are doubled, find the new average?
- A. 72 B. 45 C. 37 D. 79...
- Aftab bought 65 books for Rs.1150 from one shop and 50 books for Rs.920 from another. What is the average price he paid per book ?
- A. Rs.20 B. Rs.18 C. Rs.22 D. Rs.16...
Recent Comments