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:
270 comments Page 7 of 27.
Charan said:
2 decades ago
As venu said 10.25 can be simplified easily 10 in hrs and 25 in min so, totally in hrs it is 10+(25/60)=125/12.
Firstly 10.25 indicates the time which is exactly 10 but 25 min fast.
We have to subtract the angle subscribed by min hand.
Lastly reflex angle is the angle >180 and the remainin angle subtended by t, other than the acute angle.
Firstly 10.25 indicates the time which is exactly 10 but 25 min fast.
We have to subtract the angle subscribed by min hand.
Lastly reflex angle is the angle >180 and the remainin angle subtended by t, other than the acute angle.
Tarun said:
2 decades ago
What is reflex angle?
Akhilrajpandey said:
2 decades 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:
2 decades ago
Please let me know why "Angle traced by hour hand" is calculated for 125 /12 hrs
Gaurav said:
2 decades ago
10:25= 10+25/60=10+5/12=125/12
Sharad said:
2 decades 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:
2 decades 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:
2 decades 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.
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