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  1. Two whole numbers whose sum is 64, cannot be in the ratio ?
    1. 5 : 3
    2. 7 : 1
    3. 3 : 4
    4. 9 : 7
Correct Option: C

For dividing 64 into two whole number, the sum of the terms of the ratio must be factor of 64, so they cannot be in the ratio 3 : 4.


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