Question

a train covers the first 60 kilometre of its journey at a speed of 80 km per hour the next 90 km at a speed of 100 km per hour and the rest of its 330 km journey at the speed of 120 km per hour find the total time taken to complete journey and find its average speed​

Answer 1

i will semd a pic you can see the solution in it

hope it helps you

pls mark the answer brainlist