A clock looses 12 minutes every 24 hours. It is set right at 7:25 p.m. on Monday. What will be the time when the clock shows 1:45 p.m. the following day?
(A) 1:20:35 p.m (B) 1:35:50 p.m (C) 1:25:35 p.m (D)none of these
Solution follows here:
Solution follows here:
Solution:
Given that for 24
hours, it looses 12 minutes. The following table shows step by step calculation
of actual times and times lost by the clock:
Note that the lost times
are calculated proportionally.
Actual
Time
|
Time shown
by Clock
|
Monday 7:25 p.m
|
Monday 7:25 p.m
|
Tuesday 7:25 a.m
|
Tuesday 7:19 a.m
(for 12 Hrs –looses 6 minutes)
|
Tuesday 1:25 p.m
|
Tuesday 1:16 p.m
(for 6 Hrs –looses 3 minutes)
|
Tuesday 1:45 p.m
|
Tuesday 1:35:50 p.m
(for 20 minutes –looses 10 seconds)
|
Answer is (B)
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