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 10 of 12.
Anonymous said:
7 years ago
@Jay.
What is the value for M in this question.
What is the value for M in this question.
Rithun said:
7 years ago
Well said, Thank you @Konxie.
Tiwari said:
7 years ago
Use this formula for solving this.
(720/11-M)(60*24/M).
(720/11-M)(60*24/M).
(1)
Jamal said:
7 years ago
I am not understanding the concept, can anyone explain it?
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)
Shahaji said:
6 years ago
Actual time of overtake/coincide = 65 5/11 min.
False clock overtakes/ coincide = 64 min.
For every 65 5/11 min of actual time false watch gains 1 5/11 min= 16/11 min time.
therefore in a day that is 24 hrs time gained will be;
65 (5/11)/24 = 1 (5/11)/x.
x = 32 minutes gain in 1 day.
False clock overtakes/ coincide = 64 min.
For every 65 5/11 min of actual time false watch gains 1 5/11 min= 16/11 min time.
therefore in a day that is 24 hrs time gained will be;
65 (5/11)/24 = 1 (5/11)/x.
x = 32 minutes gain in 1 day.
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)
Soni said:
6 years ago
Is there any formula to solve this?
Sangeetha said:
6 years ago
Use this formula,
((720/11)-M) x 24 x 60/M.
Here M is 64.
((720/11)-M) x 24 x 60/M.
Here M is 64.
(2)
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