Question

A bicycle wheel makes 500 revolutions in moving 1 km. Then the approximate diameter of the wheel is
33.63 cm
63.63 cm
120.63 cm
126 .63 cm

Answer 1

Answer:

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Answer 2

Question:

A bicycle wheel makes 500 revolutions in moving 1 km. Then the approximate diameter of the wheel is

33.63 cm

63.63 cm

120.63 cm

126 .63 cm

Answer:

Given :

A bicycle wheel makes 500 revolutions in moving 1 km.

In 1 revolution, the bicycle wheel covers =

$\frac{1}{500} km \: = \frac{1000}{500} m \: = 2m$

1 revolution distance = circumference of the wheel

$2\pi \: r \\ 2 \times \frac{22}{7} \times r = 2 \\ r = \frac{2 \times 7}{ 22 } \\ = \frac{7}{22}$

Therefore, diameter (d) =

$2r = 2 \times \frac{7}{22} = \frac{7}{11} = 0.63m$

So, the diameter = 0.63 m