Q

# A person starting from his house covers a distance at 20 km/hr and returns to the starting place at

A person starting from his house covers a distance at 20 km/hr and returns to the starting place at 30 km/hr. His average speed during whole journey is

• Option 1)

25 km/hr

• Option 2)

24 km/hr

• Option 3)

20  km/hr

• Option 4)

22 km/hr

• Option 5)

27  km/hr

$Average\ Speed = \frac{2xy}{x+y}$
$= \frac{2*20*30}{50} = 24\ Km/hr$