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There are cogs around the circumference of a wheel and each

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There are cogs around the circumference of a wheel and each [#permalink] New post 27 Feb 2004, 12:01
14. There are cogs around the circumference of a wheel and each cog is Pie/16 centimeter wide with a space of pie/16 centimeter between consecutive cogs, as shown above. How many cogs of this size, with the same space between any two consecutive cogs, fit on a wheel with diameter 6 centimeters?
(A) 96
(B) 64
(C) 48
(D) 32
(E) 24
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 [#permalink] New post 27 Feb 2004, 12:15
Agree C..

Circumference = PiD=6Pi

Total space for one cog.. pi/16+pi/16=pi/8

Cogs=6*pi/(pi/8) = 48

Vivek.
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  [#permalink] 27 Feb 2004, 12:15
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There are cogs around the circumference of a wheel and each

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