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        riddles >> easy >> ANALOG CLOCK I
        
(Message started by: JC... on Aug 19^th, 2006, 8:55am)

Title: ANALOG CLOCK I
Post by JC... on Aug 19^th, 2006, 8:55am

PUZZLE:
ANALOG CLOCK I:
An analog clock reads 3:15. What is the angle between the minute hand and hour hand?

PROOF:
1.) The face of a clock (a full circle) is 360°
2.) There are 12 hours on the face of a clock
3.) -Therefore, each hour takes up 30°
4.) Each such hour has 60 minutes
5.) -Therefore, each minute is 0.5°
6.) At 3:15, the minute-hand sits exactly on the 3's position of the clock's face
7.) At 3:15, the hour-hand sits exactly 15 minutes past the 3's position
8.) -Therefore, the hour-hand is 7.5° (i.e., 15 x 0.5°) beyond the minute-hand's position.

ANSWER:
The angle formed between the hour and minute hands at 3:15, on an analog clock, is 7.5°.

Yes, definitely "easy". ;D

Regards,
JC...

Title: Re: ANALOG CLOCK I
Post by xlaurenee on Nov 4^th, 2007, 7:48am

um, its an analogue clock.
doesnt that mean its digital?
therefore no hands or face with which to measure an angle..?

Title: Re: ANALOG CLOCK I
Post by towr on Nov 4^th, 2007, 8:17am

on 11/04/07 at 07:48:53, xlaurenee wrote:

um, its an analogue clock.
doesnt that mean its digital?

Analog means it's not digital.