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1. |
A watch which gains uniformly is 4 minute slow at 9 A.M. on Sunday, and is 4 minutes 15 sec. fast at 9 P.M. on next Friday. When was it correct? |
A. | 1 A.M. Thursday |
B. | 6 P.M. Wednesday |
C. | 1 A.M. Wednesday |
D. | 6 P.M |
Answer» D. 6 P.M | |