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 40 Km/hr. Find her average speed during the whole journey?
Select:
A) 50 Km/hr
B) 50.90 Km/hr
C) 50.95 Km/hr
D) 52 Km/hr
E) 53 km/hr
Explanation:   Average speed = 2 xy/x+y   = 2*70*40/110   = 50.90 Km/hr   Answer: Option 50.90 Km/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 40 Km/hr. Find her average speed during the whole journey?