Question:If`a/b = 1/5`, then (5a + 2b)/(5a - 2b)` is equal to : 

A `3` 
B `- 3` 
C `- 5` 
D `-1` 

+ Answer
B 

+ Explanation
`(5a + 2b)/(5a - 2b)`

`= 5 (a/b) + 2/5 (a/b) - 2`

`= (5 xx 1/5 +2)/(5 xx 1/5 - 2)`

`= 3/(1 -2)`

`= -3`

+ Report

Irin Moni

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