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1. |
A mechanical grandfather clock is at present showing 7 hours 40 minutes 6 seconds. Assuming that it loses 4 seconds in every hour, what time will it show after exactly $$6\frac{1}{2}$$ hours ? |
A. | 4 hours 9 minutes 34 seconds |
B. | 4 hours 9 minutes 40 seconds |
C. | 4 hours 10 minutes 6 seconds |
D. | 4 hours 10 minutes 32 seconds |
Answer» C. 4 hours 10 minutes 6 seconds | |