Question:If `x%` of y is the same as`4/5` of `80`, then the value of `xy` is : 

A `320` 
B `400` 
C `640` 
D None 

+ Answer
D 

+ Explanation
`x/(100) xx y`

`= 4/5 xx 80 ⇒ xy`

`= 64 xx 100`

`= 6400`

+ Report

Irin Moni

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