Aptitude - Clock - Discussion
Discussion Forum : Clock - General Questions (Q.No. 10)
10.
At 3:40, the hour hand and the minute hand of a clock form an angle of:
Answer: Option
Explanation:
Angle traced by hour hand in 12 hrs. = 360°.
| Angle traced by it in | 11 | hrs = |  |
360 | x | 11 |  |
° | = 110°. |
| 3 | 12 | 3 |
Angle traced by minute hand in 60 min. = 360°.
| Angle traced by it in 40 min. = | |
360 | x 40 | |
° | = 240°. |
| 60 |
Required angle (240 - 110)° = 130°.
Discussion:
44 comments Page 2 of 5.
Pavan said:
1 decade ago
Guys got it.
If time less than 30 min use 30h - 11.5m = theta ex. for 4.10,4.15.
If time is cross 30 min use 11.5m - 30h = theta ex-for 3.40,6.40'.
If time less than 30 min use 30h - 11.5m = theta ex. for 4.10,4.15.
If time is cross 30 min use 11.5m - 30h = theta ex-for 3.40,6.40'.
Yuga said:
1 decade ago
Angle traced in 12 hours = 360 degrees.
Hence for, 3 hours and 40 minutes.
Convert 3 hours into minutes 3 hours* 60 minutes = 180 minutes.
Now, just add 40 minutes with 180 minutes total of 220 minutes.
Now divide 220/60 = 11/3.
Hence for, 3 hours and 40 minutes.
Convert 3 hours into minutes 3 hours* 60 minutes = 180 minutes.
Now, just add 40 minutes with 180 minutes total of 220 minutes.
Now divide 220/60 = 11/3.
(3)
Sopan said:
1 decade ago
Whenever the angle b/w hands of clock is asked just apply the formula:
Angle= |30h -11/2(m)|.
Where h is hour and m is min.
Angle= |30h -11/2(m)|.
Where h is hour and m is min.
Azar said:
1 decade ago
While considering 3.40 we take 40 mins = 40/60 = 2/3.
So 3*2/3 = 11/3.
So 3*2/3 = 11/3.
Kavitha said:
1 decade ago
The Angle between hour and minute hand is |(X*30) - ((Y*11)/2)|.
Mohit said:
1 decade ago
Always remember 1 minute = 4 degree. So what, consider time between hour hand and minute is 32.5minutes.
32.5minute*4 = 130 degree using this tip.
32.5minute*4 = 130 degree using this tip.
Priti said:
1 decade ago
Formula: (+)(-)A = 30(H)-5.5(min).
= 30*3-5.5*40.
= 90-220.
= 130 degree answer.
= 30*3-5.5*40.
= 90-220.
= 130 degree answer.
Birendra said:
1 decade ago
I don't understand Angle traced by it in 11 hrs = 360x11° = 110°.
Pallavi said:
1 decade ago
Answer should be 140.
Angle between 3 & 40 is 160 degree + 40/2 = 140 degree.
Angle between 3 & 40 is 160 degree + 40/2 = 140 degree.
Pallavi said:
1 decade ago
Answer should be 140.
Angle between 3 & 40 is 160-40/2 = 140.
Subtraction because 3 (hour hand is approaching min hand).
Angle between 3 & 40 is 160-40/2 = 140.
Subtraction because 3 (hour hand is approaching min hand).
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