Aptitude - Clock - Discussion
Discussion Forum : Clock - General Questions (Q.No. 8)
8.
The angle between the minute hand and the hour hand of a clock when the time is 4.20, is:
Answer: Option
Explanation:
| Angle traced by hour hand in | 13 | hrs = |  |
360 | x | 13 |  |
° | = 130°. |
| 3 | 12 | 3 |
| Angle traced by min. hand in 20 min. = | |
360 | x 20 | |
° | = 120°. |
| 60 |
Required angle = (130 - 120)° = 10°.
Discussion:
81 comments Page 4 of 9.
Snow said:
2 years ago
For 1 minute = 0.25 degree.
For 60 minutes = 15 degrees.
Then, for 20 minutes = 20 * 0.25 = 5 degrees.
Then, 15 - 5 = 10 degrees.
For 60 minutes = 15 degrees.
Then, for 20 minutes = 20 * 0.25 = 5 degrees.
Then, 15 - 5 = 10 degrees.
(2)
Tamizh said:
1 decade ago
Thanks Mr.Prasad for clearing my biggest doubt in this chapter by using that formula. i.e 30*hrs-(11/2)*mins.
That was helpful.
That was helpful.
Ravi singh said:
8 years ago
Formula :-
M=2/11(t1*30+-°)
°=Angle.
Solution-
20=2/11(4*30+-°)
10*11=|120+-°|,
110-120=°,
10°= ans.
M=2/11(t1*30+-°)
°=Angle.
Solution-
20=2/11(4*30+-°)
10*11=|120+-°|,
110-120=°,
10°= ans.
Praneeth said:
1 decade ago
Divide into 12 parts each division 30 deg. for hrs. hand for every min it moves by 1/2deg.
20 min = 20*1/2 = 10dg that's it.
20 min = 20*1/2 = 10dg that's it.
Amit goswami said:
1 decade ago
12h - 360 degree.
12*60 min --> 360 degree.
1 min -- > 360/12*60.
20 min --> 20*360/(12*60).
-->10 degree.
12*60 min --> 360 degree.
1 min -- > 360/12*60.
20 min --> 20*360/(12*60).
-->10 degree.
SANKET RANJANE said:
1 decade ago
Its simple. Just remember for hour hand it covers 0.5 degree in one minute. And minute hand covers 6 degrees.
Rohit said:
10 years ago
11/2m-30hr formula is correct for every angle. And another thing ANGLE IN CLOCKWISE DIRECTION IS NEGATIVE.
Rahul said:
1 decade ago
What do we do if we have a reverse question?
At what time between 3 and 4 clock will there be 36 degree?
At what time between 3 and 4 clock will there be 36 degree?
Yugandhar said:
2 weeks ago
Here we have to find the angle, Reflex angle, the angle).
Then the Formula is;
i.e 30 * H - 11/2 * M.
Then the Formula is;
i.e 30 * H - 11/2 * M.
Omkar said:
6 years ago
Just use this formula.
A = 30 * H - 5.5 * M.
Where;
A = angle.
H = hour.
M = minutes.
A = 30 * H - 5.5 * M.
Where;
A = angle.
H = hour.
M = minutes.
(8)
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