Aptitude - Clock - Discussion
Discussion Forum : Clock - General Questions (Q.No. 5)
5.
How much does a watch lose per day, if its hands coincide every 64 minutes?
Answer: Option
Explanation:
55 min. spaces are covered in 60 min.
| 60 min. spaces are covered in |  |
60 | x 60 |  min. |
= 65 | 5 | min. |
| 55 | 11 |
| Loss in 64 min. = | |
65 | 5 | - 64 | |
= | 16 | min. |
| 11 | 11 |
| Loss in 24 hrs = | |
16 | x | 1 | x 24 x 60 | min. |
= | 32 | 8 | min. |
| 11 | 64 | 11 |
Discussion:
119 comments Page 9 of 12.
Rsatish1110 said:
8 years ago
It should be gain,not lose.
Manoj kumar said:
8 years ago
Why do we multiply by 1/64?
Dasun Umayanga said:
8 years ago
2 hands coincide after 65+5/11 minutes in real but here it is 64 minutes.
(Coincident. Two lines or shapes that lie exactly on top of each other)
which means 1+5/11 lose per hour.
this coincides happen 22 times in a day.
which means total lost per day (1+5/11)*22=32 min.
(Coincident. Two lines or shapes that lie exactly on top of each other)
which means 1+5/11 lose per hour.
this coincides happen 22 times in a day.
which means total lost per day (1+5/11)*22=32 min.
SMZ said:
8 years ago
As per the given question the clock is not losing the time, where as it is gaining the time.
Actual clock coincide for every 65 5/11min where as this faulty clock coinciding for every 64th min. That means this clock is running faster than the actual clock so the answer comes exactly 32min not 32 8/11min.
Actual clock coincide for every 65 5/11min where as this faulty clock coinciding for every 64th min. That means this clock is running faster than the actual clock so the answer comes exactly 32min not 32 8/11min.
Pooja tiwari said:
8 years ago
I am not understanding it.
Will anyone explain me?
Will anyone explain me?
Saviour24 said:
7 years ago
Why we multiply 1/64 at the end? Please explain.
(1)
Rohit said:
7 years ago
The clock gains.
Agree with you @Rsatish1110.
Agree with you @Rsatish1110.
Rashmika said:
7 years ago
@Harish.
Subtract 8:40 from 11:60.
Subtract 8:40 from 11:60.
Jay said:
7 years ago
2 hands coincide after 65+5/11 minutes in real but here it is 64 minutes.
(Coincident. Two lines or shapes that lie exactly on top of each other)
which means 1+5/11 lose per hour.
this coincides happen 22 times in a day.
which means total lost per day (1+5/11)*22=32 min.
(Coincident. Two lines or shapes that lie exactly on top of each other)
which means 1+5/11 lose per hour.
this coincides happen 22 times in a day.
which means total lost per day (1+5/11)*22=32 min.
(1)
Jay said:
7 years ago
Use the formula.
Clock gain or loss:
720/(11-M)*(24*60)/M.
Clock gain or loss:
720/(11-M)*(24*60)/M.
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