X and Y are two towns. Ganesh covers the distance from X to Y at an average speed of 60 Km/hr. However, he covers the distance from Y to X at an average speed of 36 Km/hr. His average speed during the whole journey in km/hr. is :  Choose the correct choice from the following choices:	A) 45	B) 43	C) 40	D) 38	E) 29
Solution: 45verage speed = 2XY / X+Y   = 2*60*36 / 60+36   = 45   45nswer : 45
<result>A</result>
X and Y are two towns. Ganesh covers the distance from X to Y at an average speed of 60 Km/hr. However, he covers the distance from Y to X at an average speed of 36 Km/hr. His average speed during the whole journey in km/hr. is :