- A7:45 a.m.
- B8:30 a.m.
- C10:00 a.m.
- D7:03 a.m.
Step-by-Step Solution
. LCM min hours, so at 10:00 a.m. (45 min adds the times; 90 min is LCM(15, 18) only; 3 min is the HCF.)
Answer: C) 10:00 a.m.
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