Question

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
(A) 7:40
(B) 4:20
(C) 2:40
(D) 4:07​

Answer 1

 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

Answer 2

Answer:

(A) 7:40

Explanation:

Here's a rough diagram.