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  1. The ratio of the radii of two wheels is 3 : 4. The ratio of their circumference is
    1. 4 : 3
    2. 3 : 4
    3. 2 : 3
    4. 3 : 2
Correct Option: B

Tricky Approach
Ratio of the circumference = Ratio of radii = 3 : 4


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