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In a box, there are several balls. The pie-chart shows the percentage-wise distribution of 5 different colours of balls; and total number of balls = 1000. Also, the ratio of the light and dark shades of the six colours of balls is given.
What is the ratio of dark pink balls to the dark green balls?
Number of Pink balls = 12% of 1000 = 120
Ratio of light to dark pink balls = 1:7
Number of dark pink balls = (7/8) * 120 = 105
Number of Green balls = 18% of 1000 = 180
Ratio of light to dark green = 1:3
Number of dark green balls = (3/4) * 180 = 135
Ratio = 105:135 = 7:9