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8 of boys is 25 and number of girls is 20 what is the ratio of girls and boys |
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Answer» Step-by-step EXPLANATION: yusual, prove it using the general HEURISTIC that X=YX=Y if and only if X⊆Y and X⊇Y.X⊆Y and X⊇Y. In other words, TAKE a GENERIC element of A×(B−C)A×(B−C) and show that it also must be an element of (A×B)−(A×C)(A×B)−(A×C), and VICE versa. |
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