Aptitude - Clock - Discussion
Discussion Forum : Clock - General Questions (Q.No. 4)
4.
A watch which gains 5 seconds in 3 minutes was set right at 7 a.m. In the afternoon of the same day, when the watch indicated quarter past 4 o'clock, the true time is:
Answer: Option
Explanation:
| Time from 7 a.m. to 4.15 p.m. = 9 hrs 15 min. = | 37 | hrs. |
| 4 |
3 min. 5 sec. of this clock = 3 min. of the correct clock.
 |
37 | hrs of this clock = | 1 | hrs of the correct clock. |
| 720 | 20 |
| |
37 | hrs of this clock = |  |
1 | x | 720 | x | 37 |  |
hrs of the correct clock. |
| 4 | 20 | 37 | 4 |
= 9 hrs of the correct clock.
The correct time is 9 hrs after 7 a.m. i.e., 4 p.m.
Discussion:
154 comments Page 11 of 16.
RESHMA said:
5 years ago
@Mamta.
Your explanation is quite easy for me to understand. Thanks for helping.
Your explanation is quite easy for me to understand. Thanks for helping.
Aishwarya said:
9 years ago
Can any one explain this answer step by step? Please, I didn't understand this.
Ajay said:
1 decade ago
@Swetha
3 min converted into hours by dividing with 60.
3/60 hrs = 1/20 hrs.
3 min converted into hours by dividing with 60.
3/60 hrs = 1/20 hrs.
Banu said:
1 decade ago
What is mean by "when the watch indicated quarter past 4 o'clock"?
Sri said:
9 years ago
Hi, @Mamta
I didn't understand your answer. Please explain it once again.
I didn't understand your answer. Please explain it once again.
Hassain said:
8 years ago
Anyone can tell 4.15 PM so how can you say 15 min the question is only 4?
Archana said:
1 decade ago
Can anyone plz tell me how we got below line?
9 hrs 15 min. = 37/4 hrs.
9 hrs 15 min. = 37/4 hrs.
Soujanya said:
1 decade ago
Can anyone tell the reason behind the multiplication [1/20*720/37*37/4]?
Mohan said:
1 decade ago
@Mamta.
Thanks. Your explanation is good and very easy to understand.
Thanks. Your explanation is good and very easy to understand.
Manisha said:
9 years ago
I can't understand this, please can anyone explain it in a better way?
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