Question

A clock hung on a wall has marks instead of numerals in its dial. On the adjoining wall, there is a plane
mirror and the image of the clock in the mirror indicates the time 4 20. Then the time on the clock is
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Answer 1

Answer:

3:40 as when the clock strikes 8:20 the hours hand will not be on 8 it will be little more than 8. So when seen from mirror it will be little less than 4 i.e it will be 3 and minutes hand on 20 min when seen through mirror points on 40min.

So 3:40