Answer:
Here's how to solve the problem:
First, convert the radii of the tires from decimeters (dm) to centimeters (cm). Each decimeter is equal to 10 centimeters, so the radius of each tire is 14 dm x 10 cm/dm = 140 cm.
The distance covered by the motorbike is equal to the circumference of one tire multiplied by the number of revolutions. The circumference of a circle is equal to 2πr, where r is the radius of the circle. So the distance covered is:
distance covered = 2 x π x 140 cm x 7500 revolutions distance covered = 6600000 cm
Therefore, the distance covered by the motorbike is 6,600,000 centimeters (or 66 kilometers). The answer is c) 6,600,000 centimeters (or 66 kilometers).
Explanation: