Subject: mathqa
Question: david and lewis leave chennai for tirupati simultaneously at 7 a . m in the morning driving in two cars at speeds of 60 mph and 80 mph respectively . as soon as lewis reaches tirupati he returns back to chennai along the same route and meets david on the way back . if the distance between the two cities is 160 miles , how far from chennai did david and lewis meet ?
Option: 
A: 95 miles
B: 120 miles
C: 90 miles
D: 100 mlies
Answer: B