Question

9. A train runs for 3 hours at a speed of 65 km per hour and for next 2 hours
speed of 70 km per hour. Find the average speed of the train for the 5 ho
journey.​

Answer 1

Answer:

135

Step-by-step explanation:

add 65 and 70 with each other.

Answer 2

Answer:

Here's your answer....

Step-by-step explanation:

first case...

time= 3 hours

and speed= 65km/h

so total speed= 65x3= 195 km

in second case...

time= 2 hours

and speed= 70 km/h

so total speed=2x70= 140 km

now average speed= total distance/total time

140+195/3+2= 335/5= 67

67 km/h

Hope it helps you!