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 5 of 8.
Greeshma said:
1 decade ago
I think the formula you given (11M-60H)/2 is wrong, It is not coming can you explain it? For example the angle between the two hands at 6:00 it is giving wrong answer.
M Rajeswari said:
1 decade ago
It is correct 11/2(20)-30(4) = 110-120 = 10.
Shashank said:
1 decade ago
@Greeshma.
Angle between 2 hands at 6:00.
MIN (M) = 0.
HOUR (H) = 6.
Formula is (|11M-60H|) /2.
So, {|11(0)-60(6)|}/2 = 180.
That's it :-).
Angle between 2 hands at 6:00.
MIN (M) = 0.
HOUR (H) = 6.
Formula is (|11M-60H|) /2.
So, {|11(0)-60(6)|}/2 = 180.
That's it :-).
Sandhu said:
1 decade ago
Please tell me how makes formula 11m -60H/2?
SANKET RANJANE said:
10 years ago
Its simple. Just remember for hour hand it covers 0.5 degree in one minute. And minute hand covers 6 degrees.
Rahul said:
10 years 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?
Premsai said:
10 years ago
I am not able to understand.
(1)
Premsai said:
10 years ago
Any another method?
Netsi said:
10 years ago
@4:20 is the hour hand @4? It moves a little towards 5.
Satya prakash singh said:
10 years ago
This formula does not provide solution for all problems.
Ex. 11:43.
= 60*11 - 11*43/2.
= 187/2 = 93.5.
Which is not appropriate angle.
Ex. 11:43.
= 60*11 - 11*43/2.
= 187/2 = 93.5.
Which is not appropriate angle.
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