# 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 1 of 5.
Mehboob said:
2 years ago

Convert 3hours into min.

60 * 3 = 180.

Then add 40min.

40+180 = 220.

Then 1 hour is equal to 30degre.

30 * 3 = 90.

Then subtract 220 - 90= 130 will be the answer.

60 * 3 = 180.

Then add 40min.

40+180 = 220.

Then 1 hour is equal to 30degre.

30 * 3 = 90.

Then subtract 220 - 90= 130 will be the answer.

(9)

Mehboob said:
2 years ago

11/2 * 40 - 30 * 3 = 220 - 90=130ans.

(2)

Yuga said:
1 decade ago

Angle traced in 12 hours = 360 degrees.

Hence for, 3 hours and 40 minutes.

Convert 3 hours into minutes 3 hours* 60 minutes = 180 minutes.

Now, just add 40 minutes with 180 minutes total of 220 minutes.

Now divide 220/60 = 11/3.

Hence for, 3 hours and 40 minutes.

Convert 3 hours into minutes 3 hours* 60 minutes = 180 minutes.

Now, just add 40 minutes with 180 minutes total of 220 minutes.

Now divide 220/60 = 11/3.

(2)

Aravind said:
4 years ago

This will bring 140.

The hour hand will be between 3 to 4.

The minute hand will be at 8 because of 40 min.

8-7

7-6

6-5

5-4.

Totally 4*30 =120 degree.

And

Then hour hand will be 40/2 20 degrees.

120 + 20.

=> 140°

The hour hand will be between 3 to 4.

The minute hand will be at 8 because of 40 min.

8-7

7-6

6-5

5-4.

Totally 4*30 =120 degree.

And

Then hour hand will be 40/2 20 degrees.

120 + 20.

=> 140°

(2)

Arina said:
5 years ago

11/2*40 = 220.

30*3 = 90.

220-90 = 130.

30*3 = 90.

220-90 = 130.

(1)

Akhil Goud said:
7 years ago

30*3-11/2*20 = 20°.

Vikas said:
9 years ago

Easy method to solve quickly.

40*11/2 = 220.

220-90 = 130.

40*11/2 = 220.

220-90 = 130.

Gaurav said:
9 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.

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?

Abi said:
8 years ago

How 11/3 hours?

Post your comments here:

Quick links

Quantitative Aptitude

Verbal (English)

Reasoning

Programming

Interview

Placement Papers