A. 1 kg
B. 3 kg
C. 5 kg
D. 6 kg
E. 7 kg

Answer: D

Explanation:
We can form an equation to solve this question.
“x” is the weight of the first bar, then (11-x) is the weight of the second bar.

\frac{3}{7}x+\frac{2}{7}(11-x)=\frac{4}{11}(11)
Solving it we get,
x = 6

Hence the answer is D.

X

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