A man complete a journey in 10 hours. He 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.  Select the correct option.
A) 224km  B) 233km  C) 277km  D) 256km  E) 297km
distance = speed x time   Let time taken to travel the first half = x hr   then time taken to travel the second half = (10 - x) hr   Distance covered in the the first half = 21x   Distance covered in the the second half = 24(10 - x)   But distance covered in the the first half = Distance covered in the the second half   =&gt; 21x = 24(10 - x)   =&gt; 21x = 240 - 24x   =&gt; 45x = 240   =&gt; 9x = 48   =&gt; 3x = 16   ⇒x=163Hence Distance covered in the the first half = 21x=21×163=7×16=112 kmTotal distance = 2×112=224 km   224kmnswer :224km
<result>A</result>
A man complete a journey in 10 hours. He 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.