Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized for You

we will pick new questions that match your level based on your Timer History

Track Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

It appears that you are browsing the GMAT Club forum unregistered!

Signing up is free, quick, and confidential.
Join other 500,000 members and get the full benefits of GMAT Club

Registration gives you:

Tests

Take 11 tests and quizzes from GMAT Club and leading GMAT prep companies such as Manhattan GMAT,
Knewton, and others. All are free for GMAT Club members.

Applicant Stats

View detailed applicant stats such as GPA, GMAT score, work experience, location, application
status, and more

Books/Downloads

Download thousands of study notes,
question collections, GMAT Club’s
Grammar and Math books.
All are free!

Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:

Re: What is the angle between the minute and the hour hand of the clock wh [#permalink]

Show Tags

14 Dec 2009, 01:58

I read somewhere there is a direct formula to solve this question..2) Angle between m and h hand is ( 11/2) *m – 30 * h can this be apply here? if yes should i take the value of h =12 ..taking this I am not getting the answer.. Please suggest

I read somewhere there is a direct formula to solve this question..2) Angle between m and h hand is ( 11/2) *m – 30 * h can this be apply here? if yes should i take the value of h =12 ..taking this I am not getting the answer.. Please suggest

You just should substitute h=0 in it, not h=12.

General formula is:

\(|\frac{11}{2}m - 30h|\)

If the result is greater than 180 degrees, subtract it from 360 to get the included angle.

The above can be derived from the fact that: In 1 minute: Hour hand moves 0.5 degrees, Minute hand moves 6 degrees.

AND

In an hour: Hour hand moves 30 degrees, Minute hand moves 360 degrees.

What is the angle between the minute and the hour hand of the clock which shows 12:24?

A. 115 B. 120 C. 124 D. 130 E. 132

M12-26

What is the angle between the minute and the hour hand of the clock which shows 12:24?

A. 115 B. 120 C. 124 D. 130 E. 132

From the position of hands on 12:00 (both hands are vertical) hour hand moves \(\frac{360}{12*60}=0.5\) degrees in 1 minute and minute hand moves \(\frac{360}{60}=6\) degrees in 1 minute.

Hence at 12:24, after 24 minutes from 12:00, when both hands are vertical, hour hand will move \(24*0.5=12\) degrees from the vertical position and minute hand will move \(24*6=144\) degrees from vertical position.

So the angle between them will be \(144-12=132\) degrees.

Re: What is the angle between the minute and the hour hand of the clock wh [#permalink]

Show Tags

19 Oct 2015, 12:22

Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________

Re: What is the angle between the minute and the hour hand of the clock wh [#permalink]

Show Tags

19 Oct 2016, 20:05

Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________

Re: What is the angle between the minute and the hour hand of the clock wh [#permalink]

Show Tags

01 Jan 2017, 18:27

Bunuel wrote:

KocharRohit wrote:

I read somewhere there is a direct formula to solve this question..2) Angle between m and h hand is ( 11/2) *m – 30 * h can this be apply here? if yes should i take the value of h =12 ..taking this I am not getting the answer.. Please suggest

You just should substitute h=0 in it, not h=12.

General formula is:

\(|\frac{11}{2}m - 30h|\)

If the result is greater than 180 degrees, subtract it from 360 to get the included angle.

The above can be derived from the fact that: In 1 minute: Hour hand moves 0.5 degrees, Minute hand moves 6 degrees.

AND

In an hour: Hour hand moves 30 degrees, Minute hand moves 360 degrees.

Hope it's clear.

Please can anyone elaborate on when to assign positive and negative signs when opening the modulus in the general formula given above?

I read somewhere there is a direct formula to solve this question..2) Angle between m and h hand is ( 11/2) *m – 30 * h can this be apply here? if yes should i take the value of h =12 ..taking this I am not getting the answer.. Please suggest

You just should substitute h=0 in it, not h=12.

General formula is:

\(|\frac{11}{2}m - 30h|\)

If the result is greater than 180 degrees, subtract it from 360 to get the included angle.

The above can be derived from the fact that: In 1 minute: Hour hand moves 0.5 degrees, Minute hand moves 6 degrees.

AND

In an hour: Hour hand moves 30 degrees, Minute hand moves 360 degrees.

Hope it's clear.

Please can anyone elaborate on when to assign positive and negative signs when opening the modulus in the general formula given above?

Thanks

You should take the absolute value of \(\frac{11}{2}m - 30h\), so if \(\frac{11}{2}m - 30h\) is negative you should make it positive.
_________________

Its been long time coming. I have always been passionate about poetry. It’s my way of expressing my feelings and emotions. And i feel a person can convey...

Written by Scottish historian Niall Ferguson , the book is subtitled “A Financial History of the World”. There is also a long documentary of the same name that the...

Post-MBA I became very intrigued by how senior leaders navigated their career progression. It was also at this time that I realized I learned nothing about this during my...