GATE (TF) Textile 2012 Question Paper Solution | GATE/2012/TF/32

Question 32 (Textile Engineering & Fibre Science)

A beaker contains 50 cc of an aqueous dye solution of concentration c (w/v). 25 cc of this solution is removed and replaced by 25 cc of distilled water. This process is repeated five more times. The
final concentration of the solution is

(A)	$c$
(B)	$c\left ( \frac{1}{2} \right )^5$
(C)	$c\left ( \frac{1}{2} \right )^6$
(D)	$c\left ( \frac{1}{2} \right )^7$

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