- A11:30 a.m.
- B11:12 a.m.
- C11:40 a.m.
- D11:24 a.m.
Step-by-Step Solution
Let the distance be 28 units: speeds 7 and 8 units/. By 10 a.m. the first has done 7, leaving 21. Closing 15 units/ → 24 min → 11:24 a.m.
Answer: D) 11:24 a.m.
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