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:
180°
192 1 °
2
195°
197 1 °
2
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 .
2 2 2

Discussion:
269 comments Page 6 of 27.

Aishwarya said:   1 decade ago
Hi I'm aishu I can't understand this quest completely please explain me.

Guru said:   1 decade ago
Hi arjith your formula is wrong I think.

Tanu said:   1 decade ago
@Guru Hi Arjit formula is correct.

Ravi said:   1 decade ago
@Haimanti

Yes. You can solve like that. But why not go for more faster step. 10+25/60. It will ease your calculation.

Karthik said:   1 decade ago
This is simple way to find angle between the hands in a clock.

|30h- (11/2) m| where "h"indiacates hours and m indicates minutes.

Lipu said:   1 decade ago
Please let me know why "Angle traced by hour hand" is calculated for 125 /12 hrs

Anu said:   1 decade ago
Why "Angle traced by hour hand" is calculated for 125 /12 hrs ?

Pallavi said:   1 decade ago
In this type of question you solve easily with the help of saw hand watch.

Jagadeesh said:   1 decade ago
Actually they are 12 hours and we are caluculating 10.25.

So we will be taking directly asa 10+25/12. Because in a clock they will be only 12 hours and in the next step we are calculating for 25 min ie 25/60.

Charan said:   1 decade 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.


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