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The ratio of the number of hens to the number of goats on farm A is 5: 4 and that on farm B is 5 : 7. What could be the ratio of the total number of hens to the total number of goats in farms A and B taken together? |
3 : 2 7 : 11 1 : 2 9 : 11 |
9 : 11 |
