Raman travelled for 10 hours. He covered the first half of the distance at 20 kmph and remaining half of the distance at 15 kmph. Find the distance travelled by Raman?  Choose the correct option:  A) 161.42  B) 181.42  C) 178.42  D) 191.42  E) 171.42
Let the distance travelled be x km.   Total time = (x/2)/20 + (x/2)/15 = 10 =&gt; x/40 + x/30 = 10 =&gt; (3x + 4x)/120 = 10   =&gt; x = 171.42 km   Answer:171.42
<result>E</result>
Raman travelled for 10 hours. He covered the first half of the distance at 20 kmph and remaining half of the distance at 15 kmph. Find the distance travelled by Raman?