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Question

George and Henry started a race from opposite ends of the pool. After a minute and a half, they passed each other in the center of the pool. If they lost no time in turning and maintained their respective speeds, how many minutes after starting did they pass each other the second time?
  1. 3
  2. 412
  3. 6
  4. 712
  5. 9

A
712
B
3
C
9
D
412
E
6
Solution
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