Priya covers journey from kavali to nellore by car at average speed of 70 Km/hr. She returns back by scooty with an average speed of 20 Km/hr. Find her average speed during the whole journey? Select: A) 30Km/hr B) 31.11Km/hr C) 35Km/hr D) 40Km/hr E) 45km/hr
Explanation:   Average speed = 2 xy/x+y   = 2*70*20/110   = 31.11 Km/hr   Answer: Option 31.11Km/hr
<result>B</result>
Priya covers journey from kavali to nellore by car at average speed of 70 Km/hr. She returns back by scooty with an average speed of 20 Km/hr. Find her average speed during the whole journey?