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 4 of 12.
Kalyani said:
7 years ago
I am not understanding this problem. Please explain me.
(1)
CERS said:
7 years ago
Soln;
1 min = 60/55 same as 12/11.
We have now:
(12/11)(60)
= 720/11.
(720/11) " every 64 min.
= 16/11,
(16/11)(1/every 64 min).
1/44 min using conversion for in 1day
= (1/44 min)(60 min/1hr.)(24hr/1 day)
32.272 in the 1-day loss,
Using fraction.
32.272= 32(8/11).
1 min = 60/55 same as 12/11.
We have now:
(12/11)(60)
= 720/11.
(720/11) " every 64 min.
= 16/11,
(16/11)(1/every 64 min).
1/44 min using conversion for in 1day
= (1/44 min)(60 min/1hr.)(24hr/1 day)
32.272 in the 1-day loss,
Using fraction.
32.272= 32(8/11).
(1)
Gagan said:
6 years ago
The hands coincide 22 times a day soo instead of 24.
22 should be used as ( (720/11) -64) *24*60. The answer would be 32 mins.
22 should be used as ( (720/11) -64) *24*60. The answer would be 32 mins.
(1)
Vedant S. Koladiya said:
4 years ago
Hello @Konxie,
Why to find loss per minute? Can't we just multiply with 24?
Like, 1.45* 24...
Please tell me.
Why to find loss per minute? Can't we just multiply with 24?
Like, 1.45* 24...
Please tell me.
(1)
K.kiran kumar said:
2 decades ago
I cant get the question what it means. Please someone try to explain it.
Ravi said:
2 decades ago
I can't understand this: (60/55*60) why this step is used. Please someone explain me?
Soumya said:
1 decade ago
Why we multiply 1/64 ?
Priya said:
1 decade ago
How 55 spaces in 60 mins? couldnt get that.
Sharat said:
1 decade ago
What is this min. space?
Does it mean the min. hand lags the hour by 5 min. space ?
Does it mean the min. hand lags the hour by 5 min. space ?
Karthik said:
1 decade ago
How can the watch lose time if it is covering earlier than what is expected?
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