A man complete a journey in 40 hours. He travels first half of the journey at the rate of 20 km/hr and second half at the rate of 30 km/hr. Find the total journey in km.  Pick:
A) 960 km	B) 224 km	C) 230 km	D) 232 km	E) 234 km
0.5x/20 + 0.5x/30 = 40   --&gt; x/20+ x/30= 80   --&gt; 5x = 60x80   --&gt; x = (60x80)/5 =960 km.   960 kmnswer :960 km
<result>A</result>
A man complete a journey in 40 hours. He travels first half of the journey at the rate of 20 km/hr and second half at the rate of 30 km/hr. Find the total journey in km.