21.10.2014 Brain Teasers

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HEDGEHOGS, IPODS, BIRTHDAYS:Puzzlestoponderaheadofyourinterview.

CLOCKAt3:25pm,whatistheanglebetweenthehandsonaclock?

Thisquestioncanbesolvedinfoursteps:

Step1:Chooseapointtoanchoryouranglecalculations,say,12o'clock.

Step2:Calculatetheanglebetweentheminutehandat3:25and12o'clock:(250)/60*360=150

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21.10.2014 Brain Teasers

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Step3:Calculatetheanglebetweenthehourhandat3:25and12o'clock:3/12*360+25/60*1/12*360=102.5

Step4:At3:25pm,theanglebetweenthehourhandandminutehandisthedifferencebetweenstep2andstep3:150102.5=47.5

Note:Itisnotuncommonforpeopleforgettotakeaccountofstep3!

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