Question

A bicycle wheel makes 5000 revolution in covering 4km find its circumference and diameter

Answer 1

Solution :


Let the radius of bicycle be 'x' and Distance covered by Bicycle.



Distance covered by Bicycle in 1 Revolution = Distance covered / Total Number of revolution

✒ Distance covered by Bicycle in 1 Revolution = 4/ 500 km

= 4/500 × 1000 × 100 cm

= 4/5 × 1000 cm

= 4× 200 cm

= 800 cm

✍We have Circumference of Circle = 800 cm

✒ Circumference of Circle = πD

✒ Circumference of Circle = 22/7 × D

✒ 800 = 22/7 × D

✒ 800 × 7 = 22D

✒ 5600 = 22D

✒ Diameter = 254.54 cm


Therefore, Diameter is 254.54 cm