Question:A fraction which bears the same ratio to `1/(27)` that `3/(11)` does to `5/9`, is : 

A `1/(55)` 
B `55` 
C `1/(11)` 
D `3/(11)` 

+ Answer
A 

+ Explanation
`x : 1/(27) = 3/(11) : 5/9`

`iff 5/9 x = 1/(27) xx 3/(11)`

`:. 5/9 x = 1/(99)`

or, `x =  (1/(99) xx 9/5)`

`= 1/(55)`.

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Md. Habib Ullah

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