Question

A bicycle travels at a speed of 2,808 inches

per minute. The radius of each tire on the
bicycle is 3 feet. Approximately how many
revolutions does one of these tires make in 2 minutes?
(Use the approximation 22/7 for π.)

A. 12
B 25
C. 32
D. 46

Answer 1

in a complete turn the wheel will travel the

expressed 2pi x radius or 2 x 3.14 x 28 or 175.84

circumference of the wheel. The circumference is cm x 3 (turns) = 527.52 cm or 572.52cm x 1in/2.54 cm x 1ft/12in or 18.78 ft or if you prefer meters 572.52 cm x 1m/100cm = 5.73 m