HOUR HAND : PS Archive
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# HOUR HAND

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Joined: 18 May 2008
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02 Apr 2009, 04:49
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Between 10:06 and 12:30, the hour hand of the clock moves by

1. 66 degrees
2. 70 degrees
3. 72 degrees
4. 75 DEGREES
5. 78 DEGREES
Director
Joined: 01 Aug 2008
Posts: 768
Followers: 4

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02 Apr 2009, 05:55
ritula wrote:
Between 10:06 and 12:30, the hour hand of the clock moves by

1. 66 degrees
2. 70 degrees
3. 72 degrees
4. 75 DEGREES
5. 78 DEGREES

Ans : 72 ??

it takes 12 hrs (12*60 mins) for hours hand to make 360 degrees ... now, here the question is asking for how much angle it makes for 2 hrs 24 mins ... or for 144 mins?

(144/12*60) * 360 = 72
Re: HOUR HAND   [#permalink] 02 Apr 2009, 05:55
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