[Edexcel GCSE(9-1) Mock Set 3 Autumn 2017 2F Q24b, 2H Q6b] Only blue vans and white vans are made in a factory. The ratio of the number of blue vans to the number of white vans is 4 : 3 For blue vans, the number of small vans : the number of large vans= 3:5.
work out the fraction of the number of vans made in the factory that are blue and large.

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