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  1. The diameter of a toy wheel is 14 cm. What is the distance travelled by it in 15 revolutions?
    1. 880 cm
    2. 660 cm
    3. 600 cm
    4. 560 cm
Correct Option: B

Using Rule 7,

Circumference of wheel = πD

=
22
 × 14 = 44 cm
7

∴ Total distance travelled by wheel in 15 revolutions = 15 × 44 cm = 660 cm


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