Shan starts from Barabanki to Fatehpur, 1 hour after Ajay starts. Shahrukh meets Kajol 1.5 hours after Shahrukh starts. If the speed of Shan is at least 20km/hour fasterthan the speed of Kajol. What is the min speed of Shan to overtake Ajay, before he meets Kajol? Pick.
A) 62.2 km/h
B) 63 km/h
C) 64.5 km/h
D) 66.5 km/h
E) 67.5 km/h
Let t be the time after Kajol starts, when she meets Ajay, then   \inline t=\frac{300}{(x+y)}   This should be less than 2.5 or (x+y)&gt;120   Since y= \inline \frac{3x}{2} \inline \Rightarrow y&gt;72   This (y&gt;72) is greater than 67.5 km/h and hence Shahrukh will always overtake Ajay before he meets Kajol.   67.5 km/h)
<result>E</result>
Shan starts from Barabanki to Fatehpur, 1 hour after Ajay starts. Shahrukh meets Kajol 1.5 hours after Shahrukh starts. If the speed of Shan is at least 20km/hour fasterthan the speed of Kajol. What is the min speed of Shan to overtake Ajay, before he meets Kajol?