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:
79 comments Page 2 of 8.
Ansh Shukla said:
5 years ago
How 1-hour cover 30°?
Can anyone clear this? please!
Can anyone clear this? please!
(1)
Anuranan said:
6 years ago
It very simple.
1 Hour cover =30 °
So, 60 minutes cover 30 °.
1 minutes cover 30/60 -_1/2 °.
20 minutes cover 20 (1/2) °.
Equal to 10 °.
1 Hour cover =30 °
So, 60 minutes cover 30 °.
1 minutes cover 30/60 -_1/2 °.
20 minutes cover 20 (1/2) °.
Equal to 10 °.
(2)
Md Shahrukh Alam said:
6 years ago
|60 * 4-11 * 20|/2.
240-220/2,
20/2.
240-220/2,
20/2.
SIVAKRISHNA said:
7 years ago
@Anil
|11M-60H|/2 formula. This formula is not sufficient for some problems.
For example; can you find an angle between the minute hand and hour hand of a clock when the time is 3:40?
Solution:
|11*40-60*3|/2.
=440-180/2.
=360/2.
=180°.
|11M-60H|/2 formula. This formula is not sufficient for some problems.
For example; can you find an angle between the minute hand and hour hand of a clock when the time is 3:40?
Solution:
|11*40-60*3|/2.
=440-180/2.
=360/2.
=180°.
Ravi singh said:
7 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.
Shakir said:
7 years ago
12 hr = 360°.
1 hr = 30°.
1 min = 1/2°.
20 min = 1*20/2 = 10°.
1 hr = 30°.
1 min = 1/2°.
20 min = 1*20/2 = 10°.
Rahul gupta said:
8 years ago
For 4:20.
Basic formula and h and m indicate hours and mint.
(H-m÷5)*30-(m÷2).
Basic formula and h and m indicate hours and mint.
(H-m÷5)*30-(m÷2).
Mukram Khan said:
8 years ago
When the time in watch 01:30 what is the angle of needles?
Can anyone solve this?
Can anyone solve this?
Aadityan said:
8 years ago
Thanks @Reddilavan.
RAHUL R. PARSODKAR said:
8 years ago
SIMPLE FORMULA.
30*H - (11/2)*M
Where, 'H' FOR 'HOUR'; 'M' FOR 'MINUTE'.
Answer will generated in degree angle.
Note:- Suppose, answer of angle is greater than 180 degrees then answer will be reduced or minus (- 360) from original angle for example
1) 3:40 hr.
According to formula,
30*3 - (11/2)*40.
= 90-220
= -130
= 130 degree (and take it +Ve).
30*H - (11/2)*M
Where, 'H' FOR 'HOUR'; 'M' FOR 'MINUTE'.
Answer will generated in degree angle.
Note:- Suppose, answer of angle is greater than 180 degrees then answer will be reduced or minus (- 360) from original angle for example
1) 3:40 hr.
According to formula,
30*3 - (11/2)*40.
= 90-220
= -130
= 130 degree (and take it +Ve).
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