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S is 20% more than T. T is 10% less than U. What is the ratio of S to U ? |
27 : 25 23 : 19 25 : 21 29 : 24 |
27 : 25 |
20% = $\frac{1}{5}$ 10% = $\frac{1}{10}$ S : T : U 6 : 5 9 : 10 ____________ 54 : 45 : 50 S : U = 54 : 50 = 27 : 25 |
