Aptitude - Clock - Discussion
Discussion Forum : Clock - General Questions (Q.No. 12)
12.
The angle between the minute hand and the hour hand of a clock when the time is 8.30, is:
Answer: Option
Explanation:
| Angle traced by hour hand in | 17 | hrs = |  |
360 | x | 17 |  |
° | = 255°. |
| 2 | 12 | 2 |
| Angle traced by min. hand in 30 min. = | |
360 | x 30 | |
° | = 180°. |
| 60 |
Required angle = (255 - 180)° = 75°.
Discussion:
42 comments Page 1 of 5.
Nisar said:
12 months ago
How 17/2 came? Explain, please.
(2)
Simran Dhaliwal said:
2 years ago
8:30.
By formula:
Hr-8, min -30.
angle-(11/2) * min-30*hr.
Angle=(11/2) * 30-30*8=165-240=-75.
By formula:
Hr-8, min -30.
angle-(11/2) * min-30*hr.
Angle=(11/2) * 30-30*8=165-240=-75.
(1)
Ravi Sharma said:
4 years ago
We can use this formula for this type of questions.
Angle= 30H - (11/2)*M.
Where H is hour and M is minute.
So, 30*8- (11/2)*30 = 75 ans.
Note: If the answer is minus then ignore minus or reverse this formula.
Angle= 30H - (11/2)*M.
Where H is hour and M is minute.
So, 30*8- (11/2)*30 = 75 ans.
Note: If the answer is minus then ignore minus or reverse this formula.
(1)
Dibyaranjan sahoo said:
4 years ago
30 * 8 - 11/2 * 30,
240-165.
= 75.
240-165.
= 75.
(1)
Asad said:
6 years ago
No formula required, just 9 o clock is 45 degree, center of 9 and 7 is 8 simple 75 degree.
Tayza said:
6 years ago
@Manab.
Can you explain me? How was the formula formed?
Can you explain me? How was the formula formed?
Rahul said:
6 years ago
How is it possible as 1min = 6 degree?
=> 10 mins= 60 degree.
So, solution is wrong.
=> 10 mins= 60 degree.
So, solution is wrong.
NaveeN said:
6 years ago
Simple way to find out the degrees is 8:30
Step1: Multiply hour and min= 8 * 30 = 240.
Step:2: Now multiply 30*11/2 = 165.
Step3: Subtract 240 -165= 75° ->answer.
Step1: Multiply hour and min= 8 * 30 = 240.
Step:2: Now multiply 30*11/2 = 165.
Step3: Subtract 240 -165= 75° ->answer.
Mithun said:
6 years ago
How to find the angle when time is 7.40 using 30 * h- (11/2) * Min?
Vishnu said:
6 years ago
To find the angle between the times 1.05,2.10,3.15,4.20,5.25, 6.30,7.35,8.40,9.45,10.50,11.55 and 12.60 only takes the half of the minutes.
For 1.05=2.50, 2.10=5 and so on.
For 1.05=2.50, 2.10=5 and so on.
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