A watch which gains 10 seconds in 5 minutes was set correct at 9 a.m. When the watch indicates 20 mi….

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A watch which gains 10 seconds in 5 minutes was set correct at 9 a.m. When the watch indicates 20 minutes past 7 O`clock the same evening, the true time is

Options :-

1. 7 p.m.
2. 7.40 p.m.
3. 7.10 p.m.
4. 8 p.m.

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