1.

A box contains one red ball, one blue ball and one green ball. The ratio of the weight of the red and blue ball is 5 ∶ 6 and that of blue and green ball is 5 ∶ 4. If the blue ball weights 60 g, the weight of the green ball is

A. 48 g
B. 50 g
C. 40 g
D. 55 g
Answer» B. 50 g


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