The following bar chart shows the number of bottles of green and red colours sold by 5 different shops.
What is the ratio of the total number of green bottles sold by the 5 shops taken together to the total number of red bottles sold by the 5 shops taken together?
the ratio of the total number of green bottles sold by the 5 shops taken together to the total number of red bottles sold by the 5 shops taken together = (45+53+58+63+31) : (71+68+55+69+87)
= 250 : 350
= 5 : 7
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