Aptitude - Clock - Discussion
Discussion Forum : Clock - General Questions (Q.No. 2)
2.
The reflex angle between the hands of a clock at 10.25 is:
Answer: Option
Explanation:
| Angle traced by hour hand in | 125 | hrs = |  |
360 | x | 125 |  |
° | = 312 | 1 | ° | . |
| 12 | 12 | 12 | 2 |
| Angle traced by minute hand in 25 min = | |
360 | x 25 | |
° | = 150°. |
| 60 |
 Reflex angle = 360° - |
|
312 | 1 | - 150 | |
° | = 360° - 162 | 1 | ° | = 197 | 1° | . |
| 2 | 2 | 2 |
Discussion:
269 comments Page 7 of 27.
Tarun said:
1 decade ago
What is reflex angle?
Akhilrajpandey said:
1 decade ago
Calculation
(10*60)+25/60
where 10 is hour converted into min and add 25 min which is equal to
125/12
(10*60)+25/60
where 10 is hour converted into min and add 25 min which is equal to
125/12
Vikas said:
1 decade ago
Please let me know why "Angle traced by hour hand" is calculated for 125 /12 hrs
Gaurav said:
1 decade ago
10:25= 10+25/60=10+5/12=125/12
Sharad said:
1 decade ago
Guys. From above example. reflex angle formula it should be like this
Reflex Angle = 360(degree) - ( hour hand[it shd be in degree] - minute hand[it should be in degree] )
Reflex Angle = 360(degree) - ( hour hand[it shd be in degree] - minute hand[it should be in degree] )
Priya said:
1 decade ago
Calculation for 125/12 are correct ...as sharad said the formula must be reflex angle= 360(deg)- [ang traced by hour hand(deg)- ang traced by min hand(deg)]........ since we consider evreything based on 12 o'clock ..and so subtract 2 hrs from it(10 o'clock) ..also subtract 25 mins in reverse (25 min)....see a clock for reference.... think logically may be...thanks friends for your discussion...
Deena said:
1 decade ago
Hi. Arijit please one example find out your formula please.
Rayudu said:
1 decade ago
Reflex angle means ?
Sumit said:
1 decade ago
Reflex angle means angle is greater than 180 and less than 360. for example angle 190,210,310 etc are as reflex angles.
Sandy said:
1 decade ago
From the above example, we have already got the answr for 10.25 in hour hand, then why we agin find the deg for minute hand that too only for 25 min not 10 hours? please clear my doubt.
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