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 13 of 16.
SHILPA said:
1 decade ago
Can't understand why 3 min 5 sec corrected to 3:00 min?
Vijay Ramanathan said:
8 years ago
I agree with the Mamta's Explanation. Thanks @Mamta.
Usha said:
3 months ago
I think 59 (7/12) past 3.
So, Option A is correct.
So, Option A is correct.
(7)
Binoy Saha said:
8 years ago
3 mins clock gains 5 sec mean? Please explain it.
Hina said:
6 years ago
How 37/4 converts into 4?
Anyone explain please?
Anyone explain please?
Yashpal said:
9 years ago
Agree with you @Nitin.
The correct answer is A.
The correct answer is A.
Malini said:
5 years ago
Why we reciprocal it 37÷720? Please explain me.
Vinu said:
1 decade ago
Any body understand last step? can you explain?
Sanjit said:
8 years ago
Yes, I too think the Right answer is option A.
Binoy saha said:
8 years ago
9 hrs 15 min. = 37/4 hrs? How please explain.
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