John and Lewis leave Chennai for Bangalore simultaneously at 8 P.M in the night driving in two cars at speeds of 50 mph and 70 mph respectively. As soon as Lewis reaches Bangalore he returns back to Chennai along the same route and meets John on the way back. If the distance between the two cities is 210 miles, how far from Chennai did John and Lewis meet?	Choices
A) 200 miles	B) 140 miles	C) 150 miles	D) 149 miles	E) 50 miles
Time taken by Lewis to reach Bangalore = 210/70= 
<gadget id="calculator">210/70</gadget>
<output>3</output>
3 hours   In 3 hours, John travels   50*3= 
<gadget id="calculator">  50*3</gadget>
<output>150</output>
150 miles   So distance at which they meet should be greater than 150 miles.   Only C satisfies.   Answer is 150 miles.
<result>C</result>
John and Lewis leave Chennai for Bangalore simultaneously at 8 P.M in the night driving in two cars at speeds of 50 mph and 70 mph respectively. As soon as Lewis reaches Bangalore he returns back to Chennai along the same route and meets John on the way back. If the distance between the two cities is 210 miles, how far from Chennai did John and Lewis meet?