Question

A bicycle wheel makes 5000 revolutions in moving 11 km. find the diameter of the wheel.

Answer 1

Answer:

answer 0.7m or 0.0007km

Step-by-step explanation:

circumference= πd

circumference x Revolution = distance covered

πd x 5000 = 11

$\frac{22}{7} \times d \\ = 5000 \times 11$

$d = \frac{11}{5000} \times \frac{7}{22}$

$d = \frac{1 \times 7}{5000 \times 2}$

$d = \frac{7}{10000}$

d = 0.0007 km

or

d = 0.0007 x 100 = 0.7 m

Answer 2

Answer:

The diameter is 70 cm

Step-by-step explanation:

Let the radius of the wheel be r cm.

Distance covered by the wheel in one revolution =  

5000

11

​  

 km = 220 cm

2πr=220

2×  

7

22

​  

×r=220

r=35 cm

Diameter = 2r=70 cm

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