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A box contains balls of black, blue and green colours. If the ratio of black and blue balls is 5 : 6 and the green balls are 10 more than the black balls, find the number of blue balls if total number of balls are 42.

Answer»

A box contains balls of black, blue and green colours. If the ratio of black and blue balls is 5 : 6 and the green balls are 10 more than the black balls, find the number of blue balls if total number of balls are 42.




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