The distance between West-Town to East-Town is 15 kilometers. Two birds start flying simultaneously towards one another, the first leaving from West-Town at a speed of 4 kilometers per minute and the second bird, leaving from East-Town, at a speed of 1 kilometers per minute. What will be the distance, in kilometers, between the meeting point and West-Town?	Pick one.
A) 3.
B) 7.
C) 10.
D) 12
E) 15.
By end of 1st min: distance covered by 1st bird is 4 km and 2nd is 1 km. Total distance = 5km.   By end of 2nd min: distance covered by 1st bird is 8 km and 2nd is 2 km. Total distance = 10km.   By end of 3rd min: distance covered by 1st bird is 12 km and 2nd is 3 km. Total distance = 15km.   So, meeting point is 12kms from West-Town (from where 1st bird started)   Hence, answer will be 12.
<result>D</result>
The distance between West-Town to East-Town is 15 kilometers. Two birds start flying simultaneously towards one another, the first leaving from West-Town at a speed of 4 kilometers per minute and the second bird, leaving from East-Town, at a speed of 1 kilometers per minute. What will be the distance, in kilometers, between the meeting point and West-Town?