A woman complete a journey in 20 hours. She travels first half of the journey at the rate of 21 km/hr and second half at the rate of 24 km/hr. Find the total journey in km.	Answers
A) 334 km.	B) 216 km.	C) 314 km.	D) 448 km.	E) 544 km.
0.5x/21 + 0.5x/24 = 20   --&gt; x/21 + x/24 = 40   --&gt; x =448 km.   448 km.
<result>D</result>
A woman complete a journey in 20 hours. She travels first half of the journey at the rate of 21 km/hr and second half at the rate of 24 km/hr. Find the total journey in km.