Question

a man made a trip of 480 kilometre in 9 hour some part of trip was covered at 45 km per hour and the remaining at 60 km per hour find the path of trip covered by 60 kilometre per hour

Answer 1

Let's say he travelled at 60 km/hr for x hours and the rest 9-x at 45 km/hr. Since the total distance is 480 km, we must have

60x+45∗(9−x)=480 
15x + 405 = 480
15x = 75
x = 5
Total distance covered at 60 km/hr = 300 km

Answer 2

Answer:

300km

Step-by-step explanation:

Total distance=480km

9hrs

Part 1 Distance =x , Speed =54km/hr and

Time =x/54

Part 2 Distance = 480-x, Speed =60km/hr

Time = 480-x/60

Equation x/54 + 480-x/60 = 9

.

OR

60x+45(9-x)=480

15x+405=480

15 x=75

x=5

Total distance covered at 60km/hr

=300 km

Hope It Helps You Out !!