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 mechanical grandfather clock is at present showing 7 hours 40 minute

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

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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 ?

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