1.

If `root(x)(3)xxroot(y)(5)=10125`, then `12xy` =________.A. 1B. `1/3`C. 2D. `1/2`

Answer» Correct Answer - A
`root(x)(3)xxroot(y)(5)=10125`
`3^(1//x).51^(1//y)=3^(4)xx5^(3)`
`implies (1)/(x)=4, (1)/(y)=3`
`implies 4x=1, 3y=1`
`implies 12xy=1`


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