aeroplane travel distance of 2500 km 1200 km and 500 km at the rate off 50 km/hr 400 km/hr and 250 km/hr respectively find the average speed of the plane
Answers
420Km/hr (Given the rate of speed is 500, 400, 250kmph)
Step-by-step explanation:
Average speed = Total Distance/ Total time.
Let's find out the total time taken by the aeroplane in each of the journey.
2500km at the rate of 50kmph = 50 Hours
1200km at the rate of 400kmph = 3 hours
500km at the rate of 250kmph = 2 hours
Average Speed = (2500+1200+500) / (50+3+2) = 76.6 Km/hr
I guess you made a typo, the first speed mentioned is to be 500kmph instead of 50kmph, in that case 2500km at the speed of 500kmph will take 5 hours to cover.
Then, Average speed will be = 4200/ 5+3+2 = 4200/10
= 420Km/hr.
FOL-LOW ME ON IN-STA @riz1cr7
Answer:
76.363
Step-by-step explanation:
average speed = total distance / total time
total distance = 2500+1200+500 = 4200
total time = 2500/50 = 50 , 1200/400 = 3 , 500/250=2
total time= 50+3+2= 55
average speed= 4200/55 =76.363