Question:If`a/3 = b/4 = c/7`, the value of (a + b + c)/c `is : 

A `7` 
B `2` 
C `1/2` 
D `1/7` 

+ Answer
B 

+ Explanation
Let,`a/3 = b/4 = c/7 = k`.

Then,`a = 3k, b = 4k & c = 7k`.

:.`(a + b + c)/c`

`= (3k + 4k + 7k)/7k`

`= (14k)/(7k)`

`= 2`.

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Irin Moni

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