Question

Priya is driving at an average speed of 60 km/hr. She
reaches her friend's house in 20 minutes. On her way
back, she takes 30 minutes to reach home. Find her
average speed on her return journey.​

Answer 1

Step-by-step explanation:

for going journey

average speed = 60 km/hr

time=20 mins=20/60=1/3 hr

return journey

time =30 mins=30/60=1/2hr