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If a : b = c : d = e : f = 1 : 2, then ...

If a : b = c : d = e : f = 1 : 2, then `(pa + qc + re) : (pb + qd + rf)` is equal to :

A

`p:(+r)`

B

`(p+q):r`

C

`2:3`

D

`1:2`

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The correct Answer is:
D
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