Question
A box contains red, blue, and green balls in the ratio
of 3:4:5. If there are 60 balls in total, how many blue balls are there?Solution
Total parts = 3 + 4 + 5 = 12. Each part = 60 / 12 = 5. Number of blue balls = 4 parts = 4 * 5 = 20. Correct answer: D) 20
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