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  1. What will be the inverse ratio of 17 : 19 ?
    1. 19 : 17
    2. 18 : 17
    3. 17 : 18
    4. 19 : 5
Correct Option: A

Required inverses ratio of 17 : 19 = (1/17) : (1/19) = 19 : 17


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