Correct Answer - Option 1 : 500
Given:
A bike has to cover a distance of 660 m
Diameter of the bike is 42 cm
Concept used:
Number of rounds = Distance covered/Circumference of wheel
Formula used:
Circumference of Circle = 2πR
Where, R is Radius of the circle
Calculations:
Let the number of rounds be N
Radius of the wheel is 42/2 = 21 cm
According to the question, we have
Circumference = 2πR
⇒ Circumference = 2 × (22/7) × 21
⇒ Circumference = 132 cm
Distance (in cm) = 660 × 100
⇒ Distance (in cm) = 66,000 cm
Number of rounds = Distance covered/Circumference of wheel
⇒ Number of rounds = 66,000/132
⇒ Number of rounds = 500
∴ The number of rounds to cover a distance of 660 m is 500
