Question:The ration `4^3.5 : 2^5` is the same as: 

A `4 : 1` 
B `2 : 1` 
C `7 : 5` 
D `7 : 10` 

+ Answer
A 

+ Explanation
`4^3.5 : 2^5 = (2^2)^(7/2) : 2^5`

 `= 2^7 : 2^5`

 `=2^2 : 1`
 
 `=4 : 1`.   [Dividing each term by `2^5`]

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Md. Habib Ullah

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