# Aptitude - Clock - Discussion

Discussion Forum : Clock - General Questions (Q.No. 10)

10.

At 3:40, the hour hand and the minute hand of a clock form an angle of:

Answer: Option

Explanation:

Angle traced by hour hand in 12 hrs. = 360°.

Angle traced by it in | 11 | hrs = | 360 | x | 11 | ° | = 110°. | ||

3 | 12 | 3 |

Angle traced by minute hand in 60 min. = 360°.

Angle traced by it in 40 min. = | 360 | x 40 | ° | = 240°. | ||

60 |

Required angle (240 - 110)° = 130°.

Discussion:

43 comments Page 2 of 5.
Akhil Goud said:
7 years ago

30*3-11/2*20 = 20°.

Akhil Goud said:
7 years ago

Here, 30*3 - 11/2*20=20°.

Akhil Goud said:
7 years ago

@Vijay.

3hrs 20 minuts

By simple formula

(30*h-11/2)=angle

30*3-11/2*20= 20

.

.

The answer is 20°.

3hrs 20 minuts

By simple formula

(30*h-11/2)=angle

30*3-11/2*20= 20

.

.

The answer is 20°.

Dheeraj said:
7 years ago

What is the Angle for 11:20? Please.

Vijay said:
7 years ago

Can anyone tell me angle when it is 3:20?

AnonB said:
8 years ago

I think the answer should be less than 130 degrees.

Because, here minute hand is at "8" and hour hand is not exactly at "3". The hour hand is slightly shifted past "3". So, slightly reduction in degrees. But not exactly 130 degrees.

Am, I right?

Because, here minute hand is at "8" and hour hand is not exactly at "3". The hour hand is slightly shifted past "3". So, slightly reduction in degrees. But not exactly 130 degrees.

Am, I right?

Abi said:
8 years ago

How 11/3 hours?

Raghavi said:
8 years ago

The formula ((11 * min)/2) - 30hr is fine .

But in some cases, why are subtracting the answer from 360?

But in some cases, why are subtracting the answer from 360?

Gaurav said:
8 years ago

At 3:40,

Degree rotated by minute hand 6 deg/min = 40 * 6. ie: 240 deg.

Degree rotated by hour hand 0.5 deg/min = 0.5 * 40. ie: 20 deg + 90 deg (angle between hour hand 3 from 12).

Difference = 240 - (20+90) = 130 deg.

Degree rotated by minute hand 6 deg/min = 40 * 6. ie: 240 deg.

Degree rotated by hour hand 0.5 deg/min = 0.5 * 40. ie: 20 deg + 90 deg (angle between hour hand 3 from 12).

Difference = 240 - (20+90) = 130 deg.

Vikas said:
9 years ago

Easy method to solve quickly.

40*11/2 = 220.

220-90 = 130.

40*11/2 = 220.

220-90 = 130.

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