What is the diameter of a wheel that makes 113 revolution to go 2km 26 decametre? Options: A . &nbsp4 4/13 m B . &nbsp6 4/11m C . &nbsp12 4/11m D . &nbsp12 8/11m

What is the diameter of a wheel that makes 113 revolution to go 2km 26 decametr

Question

What is the diameter of a wheel that makes 113 revolution to go 2km 26 decametre?

Options:

A . 4 4/13 m

B . 6 4/11m

C . 12 4/11m

D . 12 8/11m

Answer: Option B

Distance = 2km 26 decametres =(2 x 1000)m +(26 x 10)m = 2260m
Distance covered in 1 revolution = 2260/113m = 20m
2R x 22/7 = 20 => 2R =(20x7/ 22) = 70/11 = 6 4/11 m

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