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 11 of 12.
Pooja Armo said:
8 years ago
Please explain that 55 min space concept. I am not getting it properly.
Bajpai said:
8 years ago
I am unable to get the concept of -55 min space covered in 60 min. As well as the question about hands coincide every 64 min refers to?
Mukul said:
8 years ago
The minute hand of a clock overtakes the hour hand at intervals of M minutes of correct time. The clock gains or loses in a day by=(72011/M)(60 * 24M) minutes.
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?
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.
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