khanitha
A bicycle wheel makes 500 revolutions in moving 22km.find the diameter of the wheel.(take pi=22/7)



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Mashy
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how much distance does it cover in making one revolution?

khanitha
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is it 22/500?

Mashy
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yes.. ok next, in general, if a wheel has a radius of say 'r' how much distance it cover in one revolution?

khanitha
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srry dude donno!!!!

Mashy
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when a wheel makes one revolution, the distance it covers is equal to its circumference.. so now can you tell?

khanitha
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2(pi)r=22/500...not sure abt my answer...........

Mashy
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correct!.. solve to get r and then find diameter

khanitha
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thank u sooooooooooooooooooooooo much .......!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mashy
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your welcommmmmeeeee.. remember the answer you get will be in km!

khanitha
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ohhhhh ur very intelligent!!!!!!!!!which grade????

Mashy
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:D.. i finished my studying :P.. m becoming a physics lecturer from this year :D

khanitha
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ohhhh congrates abt dat...gd news!!!!!!!!!!!!!!!

Mashy
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ahh thank you ;)!