The wheel of an engine turns 350 times round its axle to

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The wheel of an engine turns 350 times round its axle to cover a distance of 1.76 km. The diameter of the wheel is

1. 3 cm
2. 3√3 cm
3. 9 cm
4. √3 cm

Correct Option: D

Distance covered in 1 round
= (Total Distance) / (Total round)
= (1.76 x 1000)/350
= 176/35 m

∴ 2πr = (1.76 x 100) / 35 cm
2π = Diameter = 17600 x 7/22 x 35 = 160 cm