Question
PSLE
Oscar kept his white and black balls in two boxes. The ratio of the number of white to black balls in the first box was 1 : 6 and it was 1 : 2 in the second box. The two boxes contained the same number of balls. What fraction of Oscar's balls were white balls?
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PSLE
Oscar kept his white and black balls in two boxes. The ratio of the number of white to black balls in the first box was 1 : 6 and it was 1 : 2 in the second box. The two boxes contained the same number of balls. What fraction of Oscar's balls were white balls?