# 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.

Post your comments here:

Quick links

Quantitative Aptitude

Verbal (English)

Reasoning

Programming

Interview

Placement Papers